Add 45/75 and 20/15
1st number: 45/75, 2nd number: 1 5/15
45/75 + 20/15 is 29/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 15 is 75
Next, find the equivalent fraction of both fractional numbers with denominator 75 - For the 1st fraction, since 75 × 1 = 75,
45/75 = 45 × 1/75 × 1 = 45/75 - Likewise, for the 2nd fraction, since 15 × 5 = 75,
20/15 = 20 × 5/15 × 5 = 100/75 - Add the two like fractions:
45/75 + 100/75 = 45 + 100/75 = 145/75 - 145/75 simplified gives 29/15
- So, 45/75 + 20/15 = 29/15
In mixed form: 114/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/75+20/15 45/75+40/15 45/75+20/30 45/75+60/15 45/75+20/45 45/75+20/75