Subtract 20/21 from 36/10
1st number: 3 6/10, 2nd number: 20/21
36/10 - 20/21 is 278/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 21 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 10 × 21 = 210,
36/10 = 36 × 21/10 × 21 = 756/210 - Likewise, for the 2nd fraction, since 21 × 10 = 210,
20/21 = 20 × 10/21 × 10 = 200/210 - Subtract the two like fractions:
756/210 - 200/210 = 756 - 200/210 = 556/210 - After reducing the fraction, the answer is 278/105
- In mixed form: 268/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/10-20/21 36/10-40/21 36/20-20/21 36/10-20/42 36/10-60/21 36/30-20/21 36/10-20/63 36/50-20/21 36/70-20/21