Add 20/48 and 42/84
20/48 + 42/84 is 11/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 84 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 48 × 7 = 336,
20/48 = 20 × 7/48 × 7 = 140/336 - Likewise, for the 2nd fraction, since 84 × 4 = 336,
42/84 = 42 × 4/84 × 4 = 168/336 - Add the two like fractions:
140/336 + 168/336 = 140 + 168/336 = 308/336 - 308/336 simplified gives 11/12
- So, 20/48 + 42/84 = 11/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/48+42/84 20/96+42/84 60/48+42/84