Subtract 12/90 from 48/63
48/63 - 12/90 is 22/35.
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,
48/63 = 48 × 10/63 × 10 = 480/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
12/90 = 12 × 7/90 × 7 = 84/630 - Subtract the two like fractions:
480/630 - 84/630 = 480 - 84/630 = 396/630 - After reducing the fraction, the answer is 22/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 96/63-12/90 48/63-24/90 48/63-36/90 48/63-60/90 48/63-84/90