Add 9/42 and 20/48
9/42 + 20/48 is 53/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
9/42 = 9 × 8/42 × 8 = 72/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
20/48 = 20 × 7/48 × 7 = 140/336 - Add the two like fractions:
72/336 + 140/336 = 72 + 140/336 = 212/336 - 212/336 simplified gives 53/84
- So, 9/42 + 20/48 = 53/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/42+20/48 9/42+40/48 9/84+20/48 9/42+20/96 27/42+20/48 9/42+60/48 45/42+20/48 63/42+20/48