Add 7/60 and 81/28
1st number: 7/60, 2nd number: 2 25/28
7/60 + 81/28 is 316/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
7/60 = 7 × 7/60 × 7 = 49/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
81/28 = 81 × 15/28 × 15 = 1215/420 - Add the two like fractions:
49/420 + 1215/420 = 49 + 1215/420 = 1264/420 - 1264/420 simplified gives 316/105
- So, 7/60 + 81/28 = 316/105
In mixed form: 31/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/60+81/28 7/60+81/56 21/60+81/28 7/60+81/84 35/60+81/28 49/60+81/28