Add 45/40 and 7/15
1st number: 1 5/40, 2nd number: 7/15
45/40 + 7/15 is 191/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 15 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,
45/40 = 45 × 3/40 × 3 = 135/120 - Likewise, for the 2nd fraction, since 15 × 8 = 120,
7/15 = 7 × 8/15 × 8 = 56/120 - Add the two like fractions:
135/120 + 56/120 = 135 + 56/120 = 191/120 - So, 45/40 + 7/15 = 191/120
In mixed form: 171/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/40+7/15 45/40+14/15 45/80+7/15 45/40+7/30 45/40+21/15 45/40+7/45 45/40+35/15 45/40+7/75 45/40+49/15