Subtract 98/63 from 40/21
1st number: 1 19/21, 2nd number: 1 35/63
40/21 - 98/63 is 22/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
40/21 = 40 × 3/21 × 3 = 120/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
98/63 = 98 × 1/63 × 1 = 98/63 - Subtract the two like fractions:
120/63 - 98/63 = 120 - 98/63 = 22/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/21-98/63 40/42-98/63 40/63-98/63