Subtract 27/35 from 12/9, Solve 1 3/9

Subtract 27/35 from 12/9

1^st number: 1 3/9, 2^nd number: 27/35

12/9 - 27/35 is 59/105.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 35 is 315

Next, find the equivalent fraction of both fractional numbers with denominator 315
For the 1st fraction, since 9 × 35 = 315,
12/9 = 12 × 35/9 × 35 = 420/315
Likewise, for the 2nd fraction, since 35 × 9 = 315,
27/35 = 27 × 9/35 × 9 = 243/315
Subtract the two like fractions:
420/315 - 243/315 = 420 - 243/315 = 177/315
After reducing the fraction, the answer is 59/105

MathStep (Works offline)

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