Subtract 7/9 from 84/63
1st number: 1 21/63, 2nd number: 7/9
84/63 - 7/9 is 5/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
84/63 = 84 × 1/63 × 1 = 84/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
7/9 = 7 × 7/9 × 7 = 49/63 - Subtract the two like fractions:
84/63 - 49/63 = 84 - 49/63 = 35/63 - After reducing the fraction, the answer is 5/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/63-14/9 84/63-7/18 84/63-21/9 84/63-7/27 84/63-35/9 84/63-7/45 84/63-49/9 84/63-7/63