Add 20/48 and 2/21
20/48 + 2/21 is 43/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 21 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 21 × 16 = 336,
2/21 = 2 × 16/21 × 16 = 32/336 - Add the two like fractions:
140/336 + 32/336 = 140 + 32/336 = 172/336 - 172/336 simplified gives 43/84
- So, 20/48 + 2/21 = 43/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/48+2/21 20/48+4/21 20/96+2/21 20/48+2/42 60/48+2/21 20/48+6/21 20/48+2/63 20/48+10/21 20/48+14/21