Add 8/6 and 42/72, Solve 1 2/6 + 42/72 as a fraction

Add 8/6 and 42/72

1^st number: 1 2/6, 2^nd number: 42/72

8/6 + 42/72 is 23/12.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 72 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 6 × 12 = 72,
8/6 = 8 × 12/6 × 12 = 96/72
Likewise, for the 2nd fraction, since 72 × 1 = 72,
42/72 = 42 × 1/72 × 1 = 42/72
Add the two like fractions:
96/72 + 42/72 = 96 + 42/72 = 138/72
138/72 simplified gives 23/12
So, 8/6 + 42/72 = 23/12
In mixed form: 111/12

MathStep (Works offline)

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