Answers

Add 35/28 and 72/30

1^st number: 1 7/28, 2^nd number: 2 12/30

35/28 + 72/30 is 73/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 28 and 30 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 28 × 15 = 420,
   35/28 = 35 × 15/28 × 15 = 525/420
3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
   72/30 = 72 × 14/30 × 14 = 1008/420
4. Add the two like fractions:
   525/420 + 1008/420 = 525 + 1008/420 = 1533/420
5. 1533/420 simplified gives 73/20
6. So, 35/28 + 72/30 = 73/20
   In mixed form: 313/20

MathStep (Works offline)

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

Related: ⁷⁰/₂₈+⁷²/₃₀ ³⁵/₅₆+⁷²/₃₀ ³⁵/₂₈+⁷²/₆₀ ³⁵/₈₄+⁷²/₃₀ ³⁵/₂₈+⁷²/₉₀

Add Fractions Calculator