Subtract 3/84 from 36/20
1st number: 1 16/20, 2nd number: 3/84
36/20 - 3/84 is 247/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
36/20 = 36 × 21/20 × 21 = 756/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
3/84 = 3 × 5/84 × 5 = 15/420 - Subtract the two like fractions:
756/420 - 15/420 = 756 - 15/420 = 741/420 - After reducing the fraction, the answer is 247/140
- In mixed form: 1107/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/20-3/84 36/20-6/84 36/40-3/84 36/20-9/84 36/60-3/84 36/20-15/84 36/20-21/84