Add 63/10 and 21/70
1st number: 6 3/10, 2nd number: 21/70
63/10 + 21/70 is 33/5.
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,
63/10 = 63 × 7/10 × 7 = 441/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
21/70 = 21 × 1/70 × 1 = 21/70 - Add the two like fractions:
441/70 + 21/70 = 441 + 21/70 = 462/70 - 462/70 simplified gives 33/5
- So, 63/10 + 21/70 = 33/5
In mixed form: 63/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/10+42/70 63/20+21/70 63/10+63/70 63/30+21/70 63/50+21/70 63/70+21/70