Add 15/80 and 60/28
1st number: 15/80, 2nd number: 2 4/28
15/80 + 60/28 is 261/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 28 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
15/80 = 15 × 7/80 × 7 = 105/560 - Likewise, for the 2nd fraction, since 28 × 20 = 560,
60/28 = 60 × 20/28 × 20 = 1200/560 - Add the two like fractions:
105/560 + 1200/560 = 105 + 1200/560 = 1305/560 - 1305/560 simplified gives 261/112
- So, 15/80 + 60/28 = 261/112
In mixed form: 237/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/80+60/28 15/80+60/56 45/80+60/28 15/80+60/84 75/80+60/28