Answers

Add 70/21 and 54/98

1^st number: 3 7/21, 2^nd number: 54/98

70/21 + 54/98 is 571/147.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 98 is 294
   
   Next, find the equivalent fraction of both fractional numbers with denominator 294
2. For the 1st fraction, since 21 × 14 = 294,
   70/21 = 70 × 14/21 × 14 = 980/294
3. Likewise, for the 2nd fraction, since 98 × 3 = 294,
   54/98 = 54 × 3/98 × 3 = 162/294
4. Add the two like fractions:
   980/294 + 162/294 = 980 + 162/294 = 1142/294
5. 1142/294 simplified gives 571/147
6. So, 70/21 + 54/98 = 571/147
   In mixed form: 3130/147

MathStep (Works offline)

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

Related: ⁷⁰/₄₂+⁵⁴/₉₈ ⁷⁰/₆₃+⁵⁴/₉₈

Add Fractions Calculator