Add 4/20 and 7/56
4/20 + 7/56 is 13/40.
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,
4/20 = 4 × 14/20 × 14 = 56/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
7/56 = 7 × 5/56 × 5 = 35/280 - Add the two like fractions:
56/280 + 35/280 = 56 + 35/280 = 91/280 - 91/280 simplified gives 13/40
- So, 4/20 + 7/56 = 13/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/20+7/56 4/20+14/56 4/40+7/56 12/20+7/56 4/20+21/56 4/60+7/56 4/20+35/56 28/20+7/56 4/20+49/56