Add 42/48 and 50/42, Solve 42/48 + 1 8/42 as a fraction

Add 42/48 and 50/42

1^st number: 42/48, 2^nd number: 1 8/42

42/48 + 50/42 is 347/168.

Find the least common denominator or LCM of the two denominators:
LCM of 48 and 42 is 336

Next, find the equivalent fraction of both fractional numbers with denominator 336
For the 1st fraction, since 48 × 7 = 336,
42/48 = 42 × 7/48 × 7 = 294/336
Likewise, for the 2nd fraction, since 42 × 8 = 336,
50/42 = 50 × 8/42 × 8 = 400/336
Add the two like fractions:
294/336 + 400/336 = 294 + 400/336 = 694/336
694/336 simplified gives 347/168
So, 42/48 + 50/42 = 347/168
In mixed form: 211/168

MathStep (Works offline)

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