Add 7/28 and 72/60
1st number: 7/28, 2nd number: 1 12/60
7/28 + 72/60 is 29/20.
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,
7/28 = 7 × 15/28 × 15 = 105/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
72/60 = 72 × 7/60 × 7 = 504/420 - Add the two like fractions:
105/420 + 504/420 = 105 + 504/420 = 609/420 - 609/420 simplified gives 29/20
- So, 7/28 + 72/60 = 29/20
In mixed form: 19/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/28+72/60 7/56+72/60 21/28+72/60 7/84+72/60 35/28+72/60 49/28+72/60