Add 72/32 and 84/15
1st number: 2 8/32, 2nd number: 5 9/15
72/32 + 84/15 is 157/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 15 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 32 × 15 = 480,
72/32 = 72 × 15/32 × 15 = 1080/480 - Likewise, for the 2nd fraction, since 15 × 32 = 480,
84/15 = 84 × 32/15 × 32 = 2688/480 - Add the two like fractions:
1080/480 + 2688/480 = 1080 + 2688/480 = 3768/480 - 3768/480 simplified gives 157/20
- So, 72/32 + 84/15 = 157/20
In mixed form: 717/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/64+84/15 72/32+84/30 72/96+84/15 72/32+84/45 72/32+84/75