Add 56/90 and 20/56
56/90 + 20/56 is 617/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 90 × 28 = 2520,
56/90 = 56 × 28/90 × 28 = 1568/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
20/56 = 20 × 45/56 × 45 = 900/2520 - Add the two like fractions:
1568/2520 + 900/2520 = 1568 + 900/2520 = 2468/2520 - 2468/2520 simplified gives 617/630
- So, 56/90 + 20/56 = 617/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/90+40/56 56/90+60/56