Add 8/60 and 21/63
8/60 + 21/63 is 7/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 60 × 21 = 1260,
8/60 = 8 × 21/60 × 21 = 168/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
21/63 = 21 × 20/63 × 20 = 420/1260 - Add the two like fractions:
168/1260 + 420/1260 = 168 + 420/1260 = 588/1260 - 588/1260 simplified gives 7/15
- So, 8/60 + 21/63 = 7/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/60+21/63 8/60+42/63 24/60+21/63 40/60+21/63 56/60+21/63