Subtract 45/84 from 18/10
1st number: 1 8/10, 2nd number: 45/84
18/10 - 45/84 is 177/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 10 × 42 = 420,
18/10 = 18 × 42/10 × 42 = 756/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
45/84 = 45 × 5/84 × 5 = 225/420 - Subtract the two like fractions:
756/420 - 225/420 = 756 - 225/420 = 531/420 - After reducing the fraction, the answer is 177/140
- In mixed form: 137/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/10-45/84 18/10-90/84 18/20-45/84 54/10-45/84 18/30-45/84 90/10-45/84 18/50-45/84 18/70-45/84