Add 7/4 and 72/15
1st number: 1 3/4, 2nd number: 4 12/15
7/4 + 72/15 is 131/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 15 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 4 × 15 = 60,
7/4 = 7 × 15/4 × 15 = 105/60 - Likewise, for the 2nd fraction, since 15 × 4 = 60,
72/15 = 72 × 4/15 × 4 = 288/60 - Add the two like fractions:
105/60 + 288/60 = 105 + 288/60 = 393/60 - 393/60 simplified gives 131/20
- So, 7/4 + 72/15 = 131/20
In mixed form: 611/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/4+72/15 7/8+72/15 7/4+72/30 21/4+72/15 7/12+72/15 7/4+72/45 35/4+72/15 7/20+72/15 7/4+72/75 49/4+72/15 7/28+72/15