Add 98/10 and 21/70
1st number: 9 8/10, 2nd number: 21/70
98/10 + 21/70 is 101/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
98/10 = 98 × 7/10 × 7 = 686/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
21/70 = 21 × 1/70 × 1 = 21/70 - Add the two like fractions:
686/70 + 21/70 = 686 + 21/70 = 707/70 - 707/70 simplified gives 101/10
- So, 98/10 + 21/70 = 101/10
In mixed form: 101/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/10+42/70 98/20+21/70 98/10+63/70 98/30+21/70 98/50+21/70 98/70+21/70