Add 21/32 and 8/15
21/32 + 8/15 is 571/480.
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,
21/32 = 21 × 15/32 × 15 = 315/480 - Likewise, for the 2nd fraction, since 15 × 32 = 480,
8/15 = 8 × 32/15 × 32 = 256/480 - Add the two like fractions:
315/480 + 256/480 = 315 + 256/480 = 571/480 - So, 21/32 + 8/15 = 571/480
In mixed form: 191/480
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/32+8/15 21/32+16/15 21/64+8/15 21/32+8/30 63/32+8/15 21/32+24/15 21/96+8/15 21/32+8/45 21/32+40/15 21/32+8/75 21/32+56/15