Add 81/80 and 56/60
1st number: 1 1/80, 2nd number: 56/60
81/80 + 56/60 is 467/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 60 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
81/80 = 81 × 3/80 × 3 = 243/240 - Likewise, for the 2nd fraction, since 60 × 4 = 240,
56/60 = 56 × 4/60 × 4 = 224/240 - Add the two like fractions:
243/240 + 224/240 = 243 + 224/240 = 467/240 - So, 81/80 + 56/60 = 467/240
In mixed form: 1227/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: