Add 48/42 and 72/56
1st number: 1 6/42, 2nd number: 1 16/56
48/42 + 72/56 is 17/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
48/42 = 48 × 4/42 × 4 = 192/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
72/56 = 72 × 3/56 × 3 = 216/168 - Add the two like fractions:
192/168 + 216/168 = 192 + 216/168 = 408/168 - 408/168 simplified gives 17/7
- So, 48/42 + 72/56 = 17/7
In mixed form: 23/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/42+72/56 48/84+72/56