Add 8/10 and 98/21
1st number: 8/10, 2nd number: 4 14/21
8/10 + 98/21 is 82/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
8/10 = 8 × 21/10 × 21 = 168/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
98/21 = 98 × 10/21 × 10 = 980/210 - Add the two like fractions:
168/210 + 980/210 = 168 + 980/210 = 1148/210 - 1148/210 simplified gives 82/15
- So, 8/10 + 98/21 = 82/15
In mixed form: 57/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/10+98/21 8/20+98/21 8/10+98/42 24/10+98/21 8/30+98/21 8/10+98/63 40/10+98/21 8/50+98/21 56/10+98/21 8/70+98/21