Add 12/10 and 63/70
1st number: 1 2/10, 2nd number: 63/70
12/10 + 63/70 is 21/10.
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,
12/10 = 12 × 7/10 × 7 = 84/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
63/70 = 63 × 1/70 × 1 = 63/70 - Add the two like fractions:
84/70 + 63/70 = 84 + 63/70 = 147/70 - 147/70 simplified gives 21/10
- So, 12/10 + 63/70 = 21/10
In mixed form: 21/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/10+63/70 12/20+63/70 36/10+63/70 12/30+63/70 60/10+63/70 12/50+63/70 84/10+63/70 12/70+63/70