Add 3/8 and 63/90
3/8 + 63/90 is 43/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 8 × 45 = 360,
3/8 = 3 × 45/8 × 45 = 135/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
63/90 = 63 × 4/90 × 4 = 252/360 - Add the two like fractions:
135/360 + 252/360 = 135 + 252/360 = 387/360 - 387/360 simplified gives 43/40
- So, 3/8 + 63/90 = 43/40
In mixed form: 13/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/8+63/90 3/16+63/90 9/8+63/90 3/24+63/90 15/8+63/90 3/40+63/90 21/8+63/90 3/56+63/90