Add 40/84 and 18/48
40/84 + 18/48 is 143/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
40/84 = 40 × 4/84 × 4 = 160/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
18/48 = 18 × 7/48 × 7 = 126/336 - Add the two like fractions:
160/336 + 126/336 = 160 + 126/336 = 286/336 - 286/336 simplified gives 143/168
- So, 40/84 + 18/48 = 143/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/84+18/48 40/84+36/48 40/84+18/96 40/84+54/48 40/84+90/48