Answers

Add 40/9 and 70/72

1^st number: 4 4/9, 2^nd number: 70/72

40/9 + 70/72 is 65/12.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 72 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 9 × 8 = 72,
   40/9 = 40 × 8/9 × 8 = 320/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   70/72 = 70 × 1/72 × 1 = 70/72
4. Add the two like fractions:
   320/72 + 70/72 = 320 + 70/72 = 390/72
5. 390/72 simplified gives 65/12
6. So, 40/9 + 70/72 = 65/12
   In mixed form: 55/12

MathStep (Works offline)

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

Related: ⁸⁰/₉+⁷⁰/₇₂ ⁴⁰/₁₈+⁷⁰/₇₂ ⁴⁰/₂₇+⁷⁰/₇₂ ⁴⁰/₄₅+⁷⁰/₇₂ ⁴⁰/₆₃+⁷⁰/₇₂

Add Fractions Calculator