Add 20/42 and 56/48
1st number: 20/42, 2nd number: 1 8/48
20/42 + 56/48 is 23/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
20/42 = 20 × 8/42 × 8 = 160/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
56/48 = 56 × 7/48 × 7 = 392/336 - Add the two like fractions:
160/336 + 392/336 = 160 + 392/336 = 552/336 - 552/336 simplified gives 23/14
- So, 20/42 + 56/48 = 23/14
In mixed form: 19/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/42+56/48 20/84+56/48 20/42+56/96 60/42+56/48