Add 30/15 and 20/32
1st number: 2 0/15, 2nd number: 20/32
30/15 + 20/32 is 21/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 32 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 15 × 32 = 480,
30/15 = 30 × 32/15 × 32 = 960/480 - Likewise, for the 2nd fraction, since 32 × 15 = 480,
20/32 = 20 × 15/32 × 15 = 300/480 - Add the two like fractions:
960/480 + 300/480 = 960 + 300/480 = 1260/480 - 1260/480 simplified gives 21/8
- So, 30/15 + 20/32 = 21/8
In mixed form: 25/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/15+20/32 30/15+40/32 30/15+20/64 90/15+20/32 30/15+60/32 30/45+20/32 30/15+20/96 30/75+20/32