Add 30/56 and 9/42
30/56 + 9/42 is 3/4.
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,
30/56 = 30 × 3/56 × 3 = 90/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
9/42 = 9 × 4/42 × 4 = 36/168 - Add the two like fractions:
90/168 + 36/168 = 90 + 36/168 = 126/168 - 126/168 simplified gives 3/4
- So, 30/56 + 9/42 = 3/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/56+9/42 30/56+18/42 30/56+9/84 90/56+9/42 30/56+27/42 30/56+45/42 30/56+63/42