Add 30/32 and 20/42
30/32 + 20/42 is 475/336.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 42 is 672
Next, find the equivalent fraction of both fractional numbers with denominator 672 - For the 1st fraction, since 32 × 21 = 672,
30/32 = 30 × 21/32 × 21 = 630/672 - Likewise, for the 2nd fraction, since 42 × 16 = 672,
20/42 = 20 × 16/42 × 16 = 320/672 - Add the two like fractions:
630/672 + 320/672 = 630 + 320/672 = 950/672 - 950/672 simplified gives 475/336
- So, 30/32 + 20/42 = 475/336
In mixed form: 1139/336
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/32+20/42 30/32+40/42 30/64+20/42 30/32+20/84 90/32+20/42 30/32+60/42 30/96+20/42