Add 25/42 and 36/8, Solve 25/42 + 4 4/8 as a fraction

Add 25/42 and 36/8

1^st number: 25/42, 2^nd number: 4 4/8

25/42 + 36/8 is 107/21.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 42 × 4 = 168,
25/42 = 25 × 4/42 × 4 = 100/168
Likewise, for the 2nd fraction, since 8 × 21 = 168,
36/8 = 36 × 21/8 × 21 = 756/168
Add the two like fractions:
100/168 + 756/168 = 100 + 756/168 = 856/168
856/168 simplified gives 107/21
So, 25/42 + 36/8 = 107/21
In mixed form: 52/21

MathStep (Works offline)

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