Add 90/42 and 28/36, Solve 2 6/42 + 28/36 as a fraction

Add 90/42 and 28/36

1^st number: 2 6/42, 2^nd number: 28/36

90/42 + 28/36 is 184/63.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 36 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 42 × 6 = 252,
90/42 = 90 × 6/42 × 6 = 540/252
Likewise, for the 2nd fraction, since 36 × 7 = 252,
28/36 = 28 × 7/36 × 7 = 196/252
Add the two like fractions:
540/252 + 196/252 = 540 + 196/252 = 736/252
736/252 simplified gives 184/63
So, 90/42 + 28/36 = 184/63
In mixed form: 258/63

MathStep (Works offline)

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