Subtract 84/7 from 1/72
1st number: 1/72, 2nd number: 12 0/7
1/72 - 84/7 is -863/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
1/72 = 1 × 7/72 × 7 = 7/504 - Likewise, for the 2nd fraction, since 7 × 72 = 504,
84/7 = 84 × 72/7 × 72 = 6048/504 - Subtract the two like fractions:
7/504 - 6048/504 = 7 - 6048/504 = -6041/504 - After reducing the fraction, the answer is -863/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/72-84/7 1/72-84/14 3/72-84/7 1/72-84/21 5/72-84/7 1/72-84/35 7/72-84/7 1/72-84/49