Answers

Add 42/98 and 70/72

42/98 + 70/72 is 353/252.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 72 is 3528
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3528
2. For the 1st fraction, since 98 × 36 = 3528,
   42/98 = 42 × 36/98 × 36 = 1512/3528
3. Likewise, for the 2nd fraction, since 72 × 49 = 3528,
   70/72 = 70 × 49/72 × 49 = 3430/3528
4. Add the two like fractions:
   1512/3528 + 3430/3528 = 1512 + 3430/3528 = 4942/3528
5. 4942/3528 simplified gives 353/252
6. So, 42/98 + 70/72 = 353/252
   In mixed form: 1101/252

MathStep (Works offline)

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

Related: ⁸⁴/₉₈+⁷⁰/₇₂

Add Fractions Calculator