Answers

Add 72/42 and 30/64

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

72/42 + 30/64 is 489/224.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 64 is 1344
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1344
2. For the 1st fraction, since 42 × 32 = 1344,
   72/42 = 72 × 32/42 × 32 = 2304/1344
3. Likewise, for the 2nd fraction, since 64 × 21 = 1344,
   30/64 = 30 × 21/64 × 21 = 630/1344
4. Add the two like fractions:
   2304/1344 + 630/1344 = 2304 + 630/1344 = 2934/1344
5. 2934/1344 simplified gives 489/224
6. So, 72/42 + 30/64 = 489/224
   In mixed form: 241/224

MathStep (Works offline)

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

Related: ⁷²/₄₂+⁶⁰/₆₄ ⁷²/₈₄+³⁰/₆₄ ⁷²/₄₂+⁹⁰/₆₄

Add Fractions Calculator