Add 5/21 and 84/48, Solve 5/21 + 1 36/48 as a fraction

Add 5/21 and 84/48

1^st number: 5/21, 2^nd number: 1 36/48

5/21 + 84/48 is 167/84.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 48 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 21 × 16 = 336,
5/21 = 5 × 16/21 × 16 = 80/336
Likewise, for the 2nd fraction, since 48 × 7 = 336,
84/48 = 84 × 7/48 × 7 = 588/336
Add the two like fractions:
80/336 + 588/336 = 80 + 588/336 = 668/336
668/336 simplified gives 167/84
So, 5/21 + 84/48 = 167/84
In mixed form: 183/84

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad