Subtract 63/90 from 12/35
12/35 - 63/90 is -5/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 35 × 18 = 630,
12/35 = 12 × 18/35 × 18 = 216/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
63/90 = 63 × 7/90 × 7 = 441/630 - Subtract the two like fractions:
216/630 - 441/630 = 216 - 441/630 = -225/630 - After reducing the fraction, the answer is -5/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/35-63/90 12/70-63/90 36/35-63/90 60/35-63/90 84/35-63/90