Add 90/20 and 7/56
1st number: 4 10/20, 2nd number: 7/56
90/20 + 7/56 is 37/8.
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,
90/20 = 90 × 14/20 × 14 = 1260/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
7/56 = 7 × 5/56 × 5 = 35/280 - Add the two like fractions:
1260/280 + 35/280 = 1260 + 35/280 = 1295/280 - 1295/280 simplified gives 37/8
- So, 90/20 + 7/56 = 37/8
In mixed form: 45/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20+14/56 90/40+7/56 90/20+21/56 90/60+7/56 90/20+35/56 90/20+49/56