Subtract 49/27 from 12/10, Solve 1 2/10

Subtract 49/27 from 12/10

1^st number: 1 2/10, 2^nd number: 1 22/27

12/10 - 49/27 is -83/135.

Find the least common denominator or LCM of the two denominators:
LCM of 10 and 27 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 10 × 27 = 270,
12/10 = 12 × 27/10 × 27 = 324/270
Likewise, for the 2nd fraction, since 27 × 10 = 270,
49/27 = 49 × 10/27 × 10 = 490/270
Subtract the two like fractions:
324/270 - 490/270 = 324 - 490/270 = -166/270
After reducing the fraction, the answer is -83/135

MathStep (Works offline)

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