Add 9/72 and 45/15
1st number: 9/72, 2nd number: 3 0/15
9/72 + 45/15 is 25/8.
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,
9/72 = 9 × 5/72 × 5 = 45/360 - Likewise, for the 2nd fraction, since 15 × 24 = 360,
45/15 = 45 × 24/15 × 24 = 1080/360 - Add the two like fractions:
45/360 + 1080/360 = 45 + 1080/360 = 1125/360 - 1125/360 simplified gives 25/8
- So, 9/72 + 45/15 = 25/8
In mixed form: 31/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/72+45/15 9/72+90/15 9/72+45/30 27/72+45/15 45/72+45/15 9/72+45/75 63/72+45/15