Add 8/10 and 21/35
8/10 + 21/35 is 7/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 35 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
8/10 = 8 × 7/10 × 7 = 56/70 - Likewise, for the 2nd fraction, since 35 × 2 = 70,
21/35 = 21 × 2/35 × 2 = 42/70 - Add the two like fractions:
56/70 + 42/70 = 56 + 42/70 = 98/70 - 98/70 simplified gives 7/5
- So, 8/10 + 21/35 = 7/5
In mixed form: 12/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/10+21/35 8/10+42/35 8/20+21/35 8/10+21/70 24/10+21/35 8/10+63/35 8/30+21/35 40/10+21/35 8/50+21/35 56/10+21/35 8/70+21/35