Answers

Add 42/98 and 81/70

1^st number: 42/98, 2^nd number: 1 11/70

42/98 + 81/70 is 111/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 70 is 490
   
   Next, find the equivalent fraction of both fractional numbers with denominator 490
2. For the 1st fraction, since 98 × 5 = 490,
   42/98 = 42 × 5/98 × 5 = 210/490
3. Likewise, for the 2nd fraction, since 70 × 7 = 490,
   81/70 = 81 × 7/70 × 7 = 567/490
4. Add the two like fractions:
   210/490 + 567/490 = 210 + 567/490 = 777/490
5. 777/490 simplified gives 111/70
6. So, 42/98 + 81/70 = 111/70
   In mixed form: 141/70

MathStep (Works offline)

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

Related: ⁸⁴/₉₈+⁸¹/₇₀

Add Fractions Calculator