Add 63/4 and 9/20
1st number: 15 3/4, 2nd number: 9/20
63/4 + 9/20 is 81/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 4 × 5 = 20,
63/4 = 63 × 5/4 × 5 = 315/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
9/20 = 9 × 1/20 × 1 = 9/20 - Add the two like fractions:
315/20 + 9/20 = 315 + 9/20 = 324/20 - 324/20 simplified gives 81/5
- So, 63/4 + 9/20 = 81/5
In mixed form: 161/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/4+18/20 63/8+9/20 63/4+9/40 63/4+27/20 63/12+9/20 63/4+9/60 63/4+45/20 63/20+9/20 63/4+63/20 63/28+9/20