Add 90/28 and 63/90
1st number: 3 6/28, 2nd number: 63/90
90/28 + 63/90 is 137/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 90 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 28 × 45 = 1260,
90/28 = 90 × 45/28 × 45 = 4050/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
63/90 = 63 × 14/90 × 14 = 882/1260 - Add the two like fractions:
4050/1260 + 882/1260 = 4050 + 882/1260 = 4932/1260 - 4932/1260 simplified gives 137/35
- So, 90/28 + 63/90 = 137/35
In mixed form: 332/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56+63/90 90/84+63/90