Add 40/15 and 72/45
1st number: 2 10/15, 2nd number: 1 27/45
40/15 + 72/45 is 64/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 15 × 3 = 45,
40/15 = 40 × 3/15 × 3 = 120/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
72/45 = 72 × 1/45 × 1 = 72/45 - Add the two like fractions:
120/45 + 72/45 = 120 + 72/45 = 192/45 - 192/45 simplified gives 64/15
- So, 40/15 + 72/45 = 64/15
In mixed form: 44/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15+72/45 40/30+72/45 40/15+72/90 40/45+72/45 40/75+72/45