Add 10/5 and 12/72, Solve 2 0/5 + 12/72 as a fraction

Add 10/5 and 12/72

1^st number: 2 0/5, 2^nd number: 12/72

10/5 + 12/72 is 13/6.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 72 is 360

Next, find the equivalent fraction of both fractional numbers with denominator 360
For the 1st fraction, since 5 × 72 = 360,
10/5 = 10 × 72/5 × 72 = 720/360
Likewise, for the 2nd fraction, since 72 × 5 = 360,
12/72 = 12 × 5/72 × 5 = 60/360
Add the two like fractions:
720/360 + 60/360 = 720 + 60/360 = 780/360
780/360 simplified gives 13/6
So, 10/5 + 12/72 = 13/6
In mixed form: 21/6

MathStep (Works offline)

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