Add 81/20 and 63/30
1st number: 4 1/20, 2nd number: 2 3/30
81/20 + 63/30 is 123/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
81/20 = 81 × 3/20 × 3 = 243/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
63/30 = 63 × 2/30 × 2 = 126/60 - Add the two like fractions:
243/60 + 126/60 = 243 + 126/60 = 369/60 - 369/60 simplified gives 123/20
- So, 81/20 + 63/30 = 123/20
In mixed form: 63/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/40+63/30 81/20+63/60 81/60+63/30 81/20+63/90