Add 9/56 and 81/80
1st number: 9/56, 2nd number: 1 1/80
9/56 + 81/80 is 657/560.
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,
9/56 = 9 × 10/56 × 10 = 90/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
81/80 = 81 × 7/80 × 7 = 567/560 - Add the two like fractions:
90/560 + 567/560 = 90 + 567/560 = 657/560 - So, 9/56 + 81/80 = 657/560
In mixed form: 197/560
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/56+81/80 27/56+81/80 45/56+81/80 63/56+81/80