Add 75/60 and 84/28
1st number: 1 15/60, 2nd number: 3 0/28
75/60 + 84/28 is 17/4.
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,
75/60 = 75 × 7/60 × 7 = 525/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
84/28 = 84 × 15/28 × 15 = 1260/420 - Add the two like fractions:
525/420 + 1260/420 = 525 + 1260/420 = 1785/420 - 1785/420 simplified gives 17/4
- So, 75/60 + 84/28 = 17/4
In mixed form: 41/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/60+84/56