Add 45/48 and 63/90
45/48 + 63/90 is 131/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 48 × 15 = 720,
45/48 = 45 × 15/48 × 15 = 675/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
63/90 = 63 × 8/90 × 8 = 504/720 - Add the two like fractions:
675/720 + 504/720 = 675 + 504/720 = 1179/720 - 1179/720 simplified gives 131/80
- So, 45/48 + 63/90 = 131/80
In mixed form: 151/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/48+63/90 45/96+63/90