Add 35/21 and 48/12, Solve 1 14/21 + 4 0/12 as a fraction

Add 35/21 and 48/12

1^st number: 1 14/21, 2^nd number: 4 0/12

35/21 + 48/12 is 17/3.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 21 × 4 = 84,
35/21 = 35 × 4/21 × 4 = 140/84
Likewise, for the 2nd fraction, since 12 × 7 = 84,
48/12 = 48 × 7/12 × 7 = 336/84
Add the two like fractions:
140/84 + 336/84 = 140 + 336/84 = 476/84
476/84 simplified gives 17/3
So, 35/21 + 48/12 = 17/3
In mixed form: 52/3

MathStep (Works offline)

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