Add 2/56 and 15/90
2/56 + 15/90 is 17/84.
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,
2/56 = 2 × 45/56 × 45 = 90/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
15/90 = 15 × 28/90 × 28 = 420/2520 - Add the two like fractions:
90/2520 + 420/2520 = 90 + 420/2520 = 510/2520 - 510/2520 simplified gives 17/84
- So, 2/56 + 15/90 = 17/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/56+15/90 2/56+30/90 6/56+15/90 2/56+45/90 10/56+15/90 2/56+75/90 14/56+15/90