Add 42/2 and 6/72, Solve 21 0/2 + 6/72 as a fraction

Add 42/2 and 6/72

1^st number: 21 0/2, 2^nd number: 6/72

42/2 + 6/72 is 253/12.

Find the least common denominator or LCM of the two denominators:
LCM of 2 and 72 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72
For the 1st fraction, since 2 × 36 = 72,
42/2 = 42 × 36/2 × 36 = 1512/72
Likewise, for the 2nd fraction, since 72 × 1 = 72,
6/72 = 6 × 1/72 × 1 = 6/72
Add the two like fractions:
1512/72 + 6/72 = 1512 + 6/72 = 1518/72
1518/72 simplified gives 253/12
So, 42/2 + 6/72 = 253/12
In mixed form: 211/12

MathStep (Works offline)

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