713+ 349

  [Original equation.]

= 739 + 349

  [Rewrite the fractions of the mixed numbers using the LCD, 9.]

= 1079

  [Add the whole numbers and then add the fractions.]

3123 + 6334

  [Original expression.]

= (31 + 63) + (23 + 34)

  [Separate whole numbers from fractions.]

= (31 + 63) + (812 + 912)

  [Use the LCD, 12 to rewrite the fractions with same denominator.]

= 94 + 1712

  [Add the whole numbers and the fractions.]

= 94 + 1512

  [Convert improper fraction into mixed number.]

= 95512

  [Add.]

  [Original fractions.]

  [Multiply both the numerator and the denominator of 14 with 5 and 15 with 4 to make both the fractions equal.]

  [Add the whole numbers. Add the fractions.]

  [Original fractions.]

  [Multiply both the numerator and the denominator of 16 with 6 to make both the fractions equal.]

  [Original fractions.]

  [Multiply both the numerator and the denominator of 45 with 3 and 13 with 5 to make both the denominators of the fractions equal.]

  [Add the whole numbers. Add the fractions.]

  [1715 = 1515 + 215 = 1215.]

  [Add the whole numbers. Add the fractions.]

  [Original mixed numbers.]

  [Rewrite the fractional part in the mixed number 212 with a denominator of 4.]

  [Add the whole numbers. Add the fractions.]

  [Write the fraction 84 as 2.]

  [Add the whole numbers.]

  [Original mixed numbers.]

  [Rewrite the fractional part in the mixed number 513 with a denominator of 6.]

  [Simplify.]

  [Add the whole numbers. Add the fractions.]

  [Original mixed numbers.]

  [Rewrite the fractional part in the mixed number 212 with a denominator of 4.]

  [Simplify.]

  [Add the whole numbers. Add the fractions.]

  [Original mixed numbers.]

  [Change to improper fractions.]

  [Simplify.]

  [Multiply the numerator and the denominator of 92 by 3 and 203 by 2 to make the denominators of both the fractions equal.]

  [Simplify.]

  [Simplify.]

  [Change the mixed numbers to improper fractions.]

  [Add the numerators.]

  [Multiply both the numerator and denominator of 134 with 5 and 65 with 4 to make both the fractions have same denominator.]

  [Multiply.]

  [Add the fractions as the denominators are same.]

  [Add the numerators.]

  [Change the improper fraction to a mixed number.]