Add 3/20 and 63/80
3/20 + 63/80 is 15/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 20 × 4 = 80,
3/20 = 3 × 4/20 × 4 = 12/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
63/80 = 63 × 1/80 × 1 = 63/80 - Add the two like fractions:
12/80 + 63/80 = 12 + 63/80 = 75/80 - 75/80 simplified gives 15/16
- So, 3/20 + 63/80 = 15/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20+63/80 3/40+63/80 9/20+63/80 3/60+63/80 15/20+63/80 21/20+63/80