Subtract 3/84 from 3/10
3/10 - 3/84 is 37/140.
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,
3/10 = 3 × 42/10 × 42 = 126/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
3/84 = 3 × 5/84 × 5 = 15/420 - Subtract the two like fractions:
126/420 - 15/420 = 126 - 15/420 = 111/420 - After reducing the fraction, the answer is 37/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/10-3/84 3/10-6/84 3/20-3/84 9/10-3/84 3/10-9/84 3/30-3/84 15/10-3/84 3/10-15/84 3/50-3/84 21/10-3/84 3/10-21/84 3/70-3/84