Subtract 35/40 from 25/21
1st number: 1 4/21, 2nd number: 35/40
25/21 - 35/40 is 53/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 21 × 40 = 840,
25/21 = 25 × 40/21 × 40 = 1000/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
35/40 = 35 × 21/40 × 21 = 735/840 - Subtract the two like fractions:
1000/840 - 735/840 = 1000 - 735/840 = 265/840 - After reducing the fraction, the answer is 53/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21-35/40 25/21-70/40 25/42-35/40 25/21-35/80 75/21-35/40 25/63-35/40