Add 15/20 and 6/56
15/20 + 6/56 is 6/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 20 × 14 = 280,
15/20 = 15 × 14/20 × 14 = 210/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
6/56 = 6 × 5/56 × 5 = 30/280 - Add the two like fractions:
210/280 + 30/280 = 210 + 30/280 = 240/280 - 240/280 simplified gives 6/7
- So, 15/20 + 6/56 = 6/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/20+6/56 15/20+12/56 15/40+6/56 45/20+6/56 15/20+18/56 15/60+6/56 75/20+6/56 15/20+30/56 15/20+42/56