Add 20/15 and 42/48
1st number: 1 5/15, 2nd number: 42/48
20/15 + 42/48 is 53/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
20/15 = 20 × 16/15 × 16 = 320/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
42/48 = 42 × 5/48 × 5 = 210/240 - Add the two like fractions:
320/240 + 210/240 = 320 + 210/240 = 530/240 - 530/240 simplified gives 53/24
- So, 20/15 + 42/48 = 53/24
In mixed form: 25/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/15+42/48 20/15+84/48 20/30+42/48 20/15+42/96 60/15+42/48 20/45+42/48 20/75+42/48