Add 90/56 and 9/42
1st number: 1 34/56, 2nd number: 9/42
90/56 + 9/42 is 51/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 42 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 56 × 3 = 168,
90/56 = 90 × 3/56 × 3 = 270/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
9/42 = 9 × 4/42 × 4 = 36/168 - Add the two like fractions:
270/168 + 36/168 = 270 + 36/168 = 306/168 - 306/168 simplified gives 51/28
- So, 90/56 + 9/42 = 51/28
In mixed form: 123/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56+18/42 90/56+9/84 90/56+27/42 90/56+45/42 90/56+63/42