Subtract 12/63 from 81/75
1st number: 1 6/75, 2nd number: 12/63
81/75 - 12/63 is 467/525.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 63 is 1575
Next, find the equivalent fraction of both fractional numbers with denominator 1575 - For the 1st fraction, since 75 × 21 = 1575,
81/75 = 81 × 21/75 × 21 = 1701/1575 - Likewise, for the 2nd fraction, since 63 × 25 = 1575,
12/63 = 12 × 25/63 × 25 = 300/1575 - Subtract the two like fractions:
1701/1575 - 300/1575 = 1701 - 300/1575 = 1401/1575 - After reducing the fraction, the answer is 467/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/75-24/63 81/75-36/63 81/75-60/63 81/75-84/63