Answers

Add 30/64 and 70/42

1^st number: 30/64, 2^nd number: 1 28/42

30/64 + 70/42 is 205/96.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 64 and 42 is 1344
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1344
2. For the 1st fraction, since 64 × 21 = 1344,
   30/64 = 30 × 21/64 × 21 = 630/1344
3. Likewise, for the 2nd fraction, since 42 × 32 = 1344,
   70/42 = 70 × 32/42 × 32 = 2240/1344
4. Add the two like fractions:
   630/1344 + 2240/1344 = 630 + 2240/1344 = 2870/1344
5. 2870/1344 simplified gives 205/96
6. So, 30/64 + 70/42 = 205/96
   In mixed form: 213/96

MathStep (Works offline)

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

Related: ⁶⁰/₆₄+⁷⁰/₄₂ ³⁰/₆₄+⁷⁰/₈₄ ⁹⁰/₆₄+⁷⁰/₄₂

Add Fractions Calculator