Add 54/36 and 5/70, Solve 1 18/36 + 5/70 as a fraction

Add 54/36 and 5/70

1^st number: 1 18/36, 2^nd number: 5/70

54/36 + 5/70 is 11/7.

Find the least common denominator or LCM of the two denominators:
LCM of 36 and 70 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 36 × 35 = 1260,
54/36 = 54 × 35/36 × 35 = 1890/1260
Likewise, for the 2nd fraction, since 70 × 18 = 1260,
5/70 = 5 × 18/70 × 18 = 90/1260
Add the two like fractions:
1890/1260 + 90/1260 = 1890 + 90/1260 = 1980/1260
1980/1260 simplified gives 11/7
So, 54/36 + 5/70 = 11/7
In mixed form: 14/7

MathStep (Works offline)

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