Add 7/10 and 3/7
7/10 + 3/7 is 79/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 7 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 10 × 7 = 70,
7/10 = 7 × 7/10 × 7 = 49/70 - Likewise, for the 2nd fraction, since 7 × 10 = 70,
3/7 = 3 × 10/7 × 10 = 30/70 - Add the two like fractions:
49/70 + 30/70 = 49 + 30/70 = 79/70 - So, 7/10 + 3/7 = 79/70
In mixed form: 19/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/10+3/7 7/10+6/7 7/20+3/7 7/10+3/14 21/10+3/7 7/10+9/7 7/30+3/7 7/10+3/21 35/10+3/7 7/10+15/7 7/50+3/7 7/10+3/35 49/10+3/7 7/10+21/7 7/70+3/7 7/10+3/49