Add 20/42 and 16/24
20/42 + 16/24 is 8/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
20/42 = 20 × 4/42 × 4 = 80/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
16/24 = 16 × 7/24 × 7 = 112/168 - Add the two like fractions:
80/168 + 112/168 = 80 + 112/168 = 192/168 - 192/168 simplified gives 8/7
- So, 20/42 + 16/24 = 8/7
In mixed form: 11/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/42+16/24 20/42+32/24 20/84+16/24 20/42+16/48 60/42+16/24 20/42+48/24 20/42+16/72 20/42+80/24