Add 15/16 and 21/63
15/16 + 21/63 is 61/48.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 63 is 1008
Next, find the equivalent fraction of both fractional numbers with denominator 1008 - For the 1st fraction, since 16 × 63 = 1008,
15/16 = 15 × 63/16 × 63 = 945/1008 - Likewise, for the 2nd fraction, since 63 × 16 = 1008,
21/63 = 21 × 16/63 × 16 = 336/1008 - Add the two like fractions:
945/1008 + 336/1008 = 945 + 336/1008 = 1281/1008 - 1281/1008 simplified gives 61/48
- So, 15/16 + 21/63 = 61/48
In mixed form: 113/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/16+21/63 15/16+42/63 15/32+21/63 45/16+21/63 15/48+21/63 75/16+21/63 15/80+21/63