Add 15/18 and 45/48
15/18 + 45/48 is 85/48.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 48 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 18 × 8 = 144,
15/18 = 15 × 8/18 × 8 = 120/144 - Likewise, for the 2nd fraction, since 48 × 3 = 144,
45/48 = 45 × 3/48 × 3 = 135/144 - Add the two like fractions:
120/144 + 135/144 = 120 + 135/144 = 255/144 - 255/144 simplified gives 85/48
- So, 15/18 + 45/48 = 85/48
In mixed form: 137/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/18+45/48 15/18+90/48 15/36+45/48 15/18+45/96 45/18+45/48 15/54+45/48 75/18+45/48 15/90+45/48