Add 42/15 and 45/32
1st number: 2 12/15, 2nd number: 1 13/32
42/15 + 45/32 is 673/160.
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,
42/15 = 42 × 32/15 × 32 = 1344/480 - Likewise, for the 2nd fraction, since 32 × 15 = 480,
45/32 = 45 × 15/32 × 15 = 675/480 - Add the two like fractions:
1344/480 + 675/480 = 1344 + 675/480 = 2019/480 - 2019/480 simplified gives 673/160
- So, 42/15 + 45/32 = 673/160
In mixed form: 433/160
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+45/32 42/15+90/32 42/30+45/32 42/15+45/64 42/45+45/32 42/15+45/96 42/75+45/32