Add 72/6 and 70/42, Solve 12 0/6 + 1 28/42 as a fraction

Add 72/6 and 70/42

1^st number: 12 0/6, 2^nd number: 1 28/42

72/6 + 70/42 is 41/3.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 42 is 42

Next, find the equivalent fraction of both fractional numbers with denominator 42
For the 1st fraction, since 6 × 7 = 42,
72/6 = 72 × 7/6 × 7 = 504/42
Likewise, for the 2nd fraction, since 42 × 1 = 42,
70/42 = 70 × 1/42 × 1 = 70/42
Add the two like fractions:
504/42 + 70/42 = 504 + 70/42 = 574/42
574/42 simplified gives 41/3
So, 72/6 + 70/42 = 41/3
In mixed form: 132/3

MathStep (Works offline)

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