Add 7/4 and 15/72
1st number: 1 3/4, 2nd number: 15/72
7/4 + 15/72 is 47/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 4 × 18 = 72,
7/4 = 7 × 18/4 × 18 = 126/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
15/72 = 15 × 1/72 × 1 = 15/72 - Add the two like fractions:
126/72 + 15/72 = 126 + 15/72 = 141/72 - 141/72 simplified gives 47/24
- So, 7/4 + 15/72 = 47/24
In mixed form: 123/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/4+15/72 7/4+30/72 7/8+15/72 21/4+15/72 7/4+45/72 7/12+15/72 35/4+15/72 7/4+75/72 7/20+15/72 49/4+15/72 7/28+15/72