Add 40/20 and 56/15
1st number: 2 0/20, 2nd number: 3 11/15
40/20 + 56/15 is 86/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
40/20 = 40 × 3/20 × 3 = 120/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
56/15 = 56 × 4/15 × 4 = 224/60 - Add the two like fractions:
120/60 + 224/60 = 120 + 224/60 = 344/60 - 344/60 simplified gives 86/15
- So, 40/20 + 56/15 = 86/15
In mixed form: 511/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20+56/15 40/20+56/30 40/60+56/15 40/20+56/45 40/20+56/75