Subtract 1/21 from 36/5
1st number: 7 1/5, 2nd number: 1/21
36/5 - 1/21 is 751/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 5 × 21 = 105,
36/5 = 36 × 21/5 × 21 = 756/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
1/21 = 1 × 5/21 × 5 = 5/105 - Subtract the two like fractions:
756/105 - 5/105 = 756 - 5/105 = 751/105 - In mixed form: 716/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/5-1/21 36/5-2/21 36/10-1/21 36/5-1/42 36/5-3/21 36/15-1/21 36/5-1/63 36/5-5/21 36/25-1/21 36/5-7/21 36/35-1/21