Answers

Add 72/14 and 70/90

1^st number: 5 2/14, 2^nd number: 70/90

72/14 + 70/90 is 373/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 14 × 45 = 630,
   72/14 = 72 × 45/14 × 45 = 3240/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   70/90 = 70 × 7/90 × 7 = 490/630
4. Add the two like fractions:
   3240/630 + 490/630 = 3240 + 490/630 = 3730/630
5. 3730/630 simplified gives 373/63
6. So, 72/14 + 70/90 = 373/63
   In mixed form: 558/63

MathStep (Works offline)

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

Related: ⁷²/₂₈+⁷⁰/₉₀ ⁷²/₄₂+⁷⁰/₉₀ ⁷²/₇₀+⁷⁰/₉₀ ⁷²/₉₈+⁷⁰/₉₀

Add Fractions Calculator