Add 20/56 and 1/90
20/56 + 1/90 is 116/315.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
20/56 = 20 × 45/56 × 45 = 900/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
1/90 = 1 × 28/90 × 28 = 28/2520 - Add the two like fractions:
900/2520 + 28/2520 = 900 + 28/2520 = 928/2520 - 928/2520 simplified gives 116/315
- So, 20/56 + 1/90 = 116/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/56+1/90 20/56+2/90 60/56+1/90 20/56+3/90 20/56+5/90 20/56+7/90