Add 9/20 and 7/56
9/20 + 7/56 is 23/40.
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,
9/20 = 9 × 14/20 × 14 = 126/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
7/56 = 7 × 5/56 × 5 = 35/280 - Add the two like fractions:
126/280 + 35/280 = 126 + 35/280 = 161/280 - 161/280 simplified gives 23/40
- So, 9/20 + 7/56 = 23/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/20+7/56 9/20+14/56 9/40+7/56 27/20+7/56 9/20+21/56 9/60+7/56 45/20+7/56 9/20+35/56 63/20+7/56 9/20+49/56