Add 63/28 and 84/90
1st number: 2 7/28, 2nd number: 84/90
63/28 + 84/90 is 191/60.
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,
63/28 = 63 × 45/28 × 45 = 2835/1260 - Likewise, for the 2nd fraction, since 90 × 14 = 1260,
84/90 = 84 × 14/90 × 14 = 1176/1260 - Add the two like fractions:
2835/1260 + 1176/1260 = 2835 + 1176/1260 = 4011/1260 - 4011/1260 simplified gives 191/60
- So, 63/28 + 84/90 = 191/60
In mixed form: 311/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/56+84/90 63/84+84/90