Add 48/15 and 21/72
1st number: 3 3/15, 2nd number: 21/72
48/15 + 21/72 is 419/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 15 × 24 = 360,
48/15 = 48 × 24/15 × 24 = 1152/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
21/72 = 21 × 5/72 × 5 = 105/360 - Add the two like fractions:
1152/360 + 105/360 = 1152 + 105/360 = 1257/360 - 1257/360 simplified gives 419/120
- So, 48/15 + 21/72 = 419/120
In mixed form: 359/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/15+21/72 48/15+42/72 48/30+21/72 48/15+63/72 48/45+21/72 48/75+21/72