Add 72/56 and 10/42
1st number: 1 16/56, 2nd number: 10/42
72/56 + 10/42 is 32/21.
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,
72/56 = 72 × 3/56 × 3 = 216/168 - Likewise, for the 2nd fraction, since 42 × 4 = 168,
10/42 = 10 × 4/42 × 4 = 40/168 - Add the two like fractions:
216/168 + 40/168 = 216 + 40/168 = 256/168 - 256/168 simplified gives 32/21
- So, 72/56 + 10/42 = 32/21
In mixed form: 111/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/56+20/42 72/56+10/84 72/56+30/42 72/56+50/42 72/56+70/42