Add 5/90 and 54/56
5/90 + 54/56 is 257/252.
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,
5/90 = 5 × 28/90 × 28 = 140/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
54/56 = 54 × 45/56 × 45 = 2430/2520 - Add the two like fractions:
140/2520 + 2430/2520 = 140 + 2430/2520 = 2570/2520 - 2570/2520 simplified gives 257/252
- So, 5/90 + 54/56 = 257/252
In mixed form: 15/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/90+54/56 15/90+54/56 25/90+54/56 35/90+54/56