Add 84/28 and 12/60
1st number: 3 0/28, 2nd number: 12/60
84/28 + 12/60 is 16/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
84/28 = 84 × 15/28 × 15 = 1260/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
12/60 = 12 × 7/60 × 7 = 84/420 - Add the two like fractions:
1260/420 + 84/420 = 1260 + 84/420 = 1344/420 - 1344/420 simplified gives 16/5
- So, 84/28 + 12/60 = 16/5
In mixed form: 31/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/28+24/60 84/56+12/60 84/28+36/60 84/28+84/60