Add 63/16 and 7/20
1st number: 3 15/16, 2nd number: 7/20
63/16 + 7/20 is 343/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 20 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
63/16 = 63 × 5/16 × 5 = 315/80 - Likewise, for the 2nd fraction, since 20 × 4 = 80,
7/20 = 7 × 4/20 × 4 = 28/80 - Add the two like fractions:
315/80 + 28/80 = 315 + 28/80 = 343/80 - So, 63/16 + 7/20 = 343/80
In mixed form: 423/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/16+14/20 63/32+7/20 63/16+7/40 63/16+21/20 63/48+7/20 63/16+7/60 63/16+35/20 63/80+7/20 63/16+49/20