Add 3/28 and 20/48
3/28 + 20/48 is 11/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 28 × 12 = 336,
3/28 = 3 × 12/28 × 12 = 36/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
20/48 = 20 × 7/48 × 7 = 140/336 - Add the two like fractions:
36/336 + 140/336 = 36 + 140/336 = 176/336 - 176/336 simplified gives 11/21
- So, 3/28 + 20/48 = 11/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/28+20/48 3/28+40/48 3/56+20/48 3/28+20/96 9/28+20/48 3/28+60/48 3/84+20/48 15/28+20/48 21/28+20/48