Add 5/56 and 15/80
5/56 + 15/80 is 31/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 56 × 10 = 560,
5/56 = 5 × 10/56 × 10 = 50/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
15/80 = 15 × 7/80 × 7 = 105/560 - Add the two like fractions:
50/560 + 105/560 = 50 + 105/560 = 155/560 - 155/560 simplified gives 31/112
- So, 5/56 + 15/80 = 31/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/56+15/80 5/56+30/80 15/56+15/80 5/56+45/80 25/56+15/80 5/56+75/80 35/56+15/80