Add 72/15 and 56/90
1st number: 4 12/15, 2nd number: 56/90
72/15 + 56/90 is 244/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
72/15 = 72 × 6/15 × 6 = 432/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
56/90 = 56 × 1/90 × 1 = 56/90 - Add the two like fractions:
432/90 + 56/90 = 432 + 56/90 = 488/90 - 488/90 simplified gives 244/45
- So, 72/15 + 56/90 = 244/45
In mixed form: 519/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/30+56/90 72/45+56/90 72/75+56/90