Subtract 12/90 from 35/63
35/63 - 12/90 is 19/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
35/63 = 35 × 10/63 × 10 = 350/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
12/90 = 12 × 7/90 × 7 = 84/630 - Subtract the two like fractions:
350/630 - 84/630 = 350 - 84/630 = 266/630 - After reducing the fraction, the answer is 19/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/63-12/90 35/63-24/90 35/63-36/90 35/63-60/90 35/63-84/90