Add 25/21 and 5/48, Solve 1 4/21 + 5/48 as a fraction

Add 25/21 and 5/48

1^st number: 1 4/21, 2^nd number: 5/48

25/21 + 5/48 is 145/112.

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,
25/21 = 25 × 16/21 × 16 = 400/336
Likewise, for the 2nd fraction, since 48 × 7 = 336,
5/48 = 5 × 7/48 × 7 = 35/336
Add the two like fractions:
400/336 + 35/336 = 400 + 35/336 = 435/336
435/336 simplified gives 145/112
So, 25/21 + 5/48 = 145/112
In mixed form: 133/112

MathStep (Works offline)

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