Add 15/42 and 8/32
15/42 + 8/32 is 17/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 32 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 42 × 16 = 672,
15/42 = 15 × 16/42 × 16 = 240/672 - Likewise, for the 2nd fraction, since 32 × 21 = 672,
8/32 = 8 × 21/32 × 21 = 168/672 - Add the two like fractions:
240/672 + 168/672 = 240 + 168/672 = 408/672 - 408/672 simplified gives 17/28
- So, 15/42 + 8/32 = 17/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/42+8/32 15/42+16/32 15/84+8/32 15/42+8/64 45/42+8/32 15/42+24/32 15/42+8/96 75/42+8/32 15/42+40/32 15/42+56/32