Subtract 63/35 from 21/2
1st number: 10 1/2, 2nd number: 1 28/35
21/2 - 63/35 is 87/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 35 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
21/2 = 21 × 35/2 × 35 = 735/70 - Likewise, for the 2nd fraction, since 35 × 2 = 70,
63/35 = 63 × 2/35 × 2 = 126/70 - Subtract the two like fractions:
735/70 - 126/70 = 735 - 126/70 = 609/70 - After reducing the fraction, the answer is 87/10
- In mixed form: 87/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/2-63/35 21/4-63/35 21/2-63/70 63/2-63/35 21/6-63/35 21/10-63/35 21/14-63/35