Add 9/10 and 63/8
1st number: 9/10, 2nd number: 7 7/8
9/10 + 63/8 is 351/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
9/10 = 9 × 4/10 × 4 = 36/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
63/8 = 63 × 5/8 × 5 = 315/40 - Add the two like fractions:
36/40 + 315/40 = 36 + 315/40 = 351/40 - So, 9/10 + 63/8 = 351/40
In mixed form: 831/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/10+63/8 9/20+63/8 9/10+63/16 27/10+63/8 9/30+63/8 9/10+63/24 45/10+63/8 9/50+63/8 9/10+63/40 63/10+63/8 9/70+63/8 9/10+63/56