Add 72/7 and 12/56
1st number: 10 2/7, 2nd number: 12/56
72/7 + 12/56 is 21/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 7 × 8 = 56,
72/7 = 72 × 8/7 × 8 = 576/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
12/56 = 12 × 1/56 × 1 = 12/56 - Add the two like fractions:
576/56 + 12/56 = 576 + 12/56 = 588/56 - 588/56 simplified gives 21/2
- So, 72/7 + 12/56 = 21/2
In mixed form: 101/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/7+24/56 72/14+12/56 72/7+36/56 72/21+12/56 72/7+60/56 72/35+12/56 72/7+84/56 72/49+12/56