Add 27/70 and 25/8, Solve 27/70 + 3 1/8 as a fraction

Add 27/70 and 25/8

1^st number: 27/70, 2^nd number: 3 1/8

27/70 + 25/8 is 983/280.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 is 280

Next, find the equivalent fraction of both fractional numbers with denominator 280
For the 1st fraction, since 70 × 4 = 280,
27/70 = 27 × 4/70 × 4 = 108/280
Likewise, for the 2nd fraction, since 8 × 35 = 280,
25/8 = 25 × 35/8 × 35 = 875/280
Add the two like fractions:
108/280 + 875/280 = 108 + 875/280 = 983/280
So, 27/70 + 25/8 = 983/280
In mixed form: 3143/280

MathStep (Works offline)

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