Answers

Add 70/28 and 72/18

1^st number: 2 14/28, 2^nd number: 4 0/18

70/28 + 72/18 is 13/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 18 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 28 × 9 = 252,
   70/28 = 70 × 9/28 × 9 = 630/252
3. Likewise, for the 2nd fraction, since 18 × 14 = 252,
   72/18 = 72 × 14/18 × 14 = 1008/252
4. Add the two like fractions:
   630/252 + 1008/252 = 630 + 1008/252 = 1638/252
5. 1638/252 simplified gives 13/2
6. So, 70/28 + 72/18 = 13/2
   In mixed form: 61/2

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁷⁰/₅₆+⁷²/₁₈ ⁷⁰/₂₈+⁷²/₃₆ ⁷⁰/₈₄+⁷²/₁₈ ⁷⁰/₂₈+⁷²/₅₄ ⁷⁰/₂₈+⁷²/₉₀

Add Fractions Calculator