Add 15/7 and 80/56
1st number: 2 1/7, 2nd number: 1 24/56
15/7 + 80/56 is 25/7.
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,
15/7 = 15 × 8/7 × 8 = 120/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
80/56 = 80 × 1/56 × 1 = 80/56 - Add the two like fractions:
120/56 + 80/56 = 120 + 80/56 = 200/56 - 200/56 simplified gives 25/7
- So, 15/7 + 80/56 = 25/7
In mixed form: 34/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7+80/56 15/14+80/56 45/7+80/56 15/21+80/56 75/7+80/56 15/35+80/56 15/49+80/56