Add 15/72 and 9/45
15/72 + 9/45 is 49/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 45 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 45 × 8 = 360,
9/45 = 9 × 8/45 × 8 = 72/360 - Add the two like fractions:
75/360 + 72/360 = 75 + 72/360 = 147/360 - 147/360 simplified gives 49/120
- So, 15/72 + 9/45 = 49/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/72+9/45 15/72+18/45 15/72+9/90 45/72+9/45 15/72+27/45 75/72+9/45 15/72+63/45