Add 63/21 and 98/10
1st number: 3 0/21, 2nd number: 9 8/10
63/21 + 98/10 is 64/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 21 × 10 = 210,
63/21 = 63 × 10/21 × 10 = 630/210 - Likewise, for the 2nd fraction, since 10 × 21 = 210,
98/10 = 98 × 21/10 × 21 = 2058/210 - Add the two like fractions:
630/210 + 2058/210 = 630 + 2058/210 = 2688/210 - 2688/210 simplified gives 64/5
- So, 63/21 + 98/10 = 64/5
In mixed form: 124/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/42+98/10 63/21+98/20 63/21+98/30 63/21+98/50 63/21+98/70