Subtract 8/84 from 7/10
7/10 - 8/84 is 127/210.
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,
7/10 = 7 × 42/10 × 42 = 294/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
8/84 = 8 × 5/84 × 5 = 40/420 - Subtract the two like fractions:
294/420 - 40/420 = 294 - 40/420 = 254/420 - After reducing the fraction, the answer is 127/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/10-8/84 7/10-16/84 7/20-8/84 21/10-8/84 7/10-24/84 7/30-8/84 35/10-8/84 7/10-40/84 7/50-8/84 49/10-8/84 7/10-56/84 7/70-8/84