Subtract 10/20 from 84/63
1st number: 1 21/63, 2nd number: 10/20
84/63 - 10/20 is 5/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
84/63 = 84 × 20/63 × 20 = 1680/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
10/20 = 10 × 63/20 × 63 = 630/1260 - Subtract the two like fractions:
1680/1260 - 630/1260 = 1680 - 630/1260 = 1050/1260 - After reducing the fraction, the answer is 5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/63-10/40 84/63-30/20 84/63-10/60 84/63-50/20 84/63-70/20