Add 15/72 and 45/15
1st number: 15/72, 2nd number: 3 0/15
15/72 + 45/15 is 77/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 15 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
15/72 = 15 × 5/72 × 5 = 75/360 - Likewise, for the 2nd fraction, since 15 × 24 = 360,
45/15 = 45 × 24/15 × 24 = 1080/360 - Add the two like fractions:
75/360 + 1080/360 = 75 + 1080/360 = 1155/360 - 1155/360 simplified gives 77/24
- So, 15/72 + 45/15 = 77/24
In mixed form: 35/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/72+45/15 15/72+90/15 15/72+45/30 45/72+45/15 75/72+45/15 15/72+45/75