Add 72/96 and 18/45
72/96 + 18/45 is 23/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 45 is 1440
Next, find the equivalent fraction of both fractional numbers with denominator 1440 - For the 1st fraction, since 96 × 15 = 1440,
72/96 = 72 × 15/96 × 15 = 1080/1440 - Likewise, for the 2nd fraction, since 45 × 32 = 1440,
18/45 = 18 × 32/45 × 32 = 576/1440 - Add the two like fractions:
1080/1440 + 576/1440 = 1080 + 576/1440 = 1656/1440 - 1656/1440 simplified gives 23/20
- So, 72/96 + 18/45 = 23/20
In mixed form: 13/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/96+36/45 72/96+18/90 72/96+54/45 72/96+90/45