Add 25/56 and 18/90
25/56 + 18/90 is 181/280.
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,
25/56 = 25 × 45/56 × 45 = 1125/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
18/90 = 18 × 28/90 × 28 = 504/2520 - Add the two like fractions:
1125/2520 + 504/2520 = 1125 + 504/2520 = 1629/2520 - 1629/2520 simplified gives 181/280
- So, 25/56 + 18/90 = 181/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/56+18/90 25/56+36/90 75/56+18/90 25/56+54/90