Subtract 27/80 from 70/84
70/84 - 27/80 is 119/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 84 × 20 = 1680,
70/84 = 70 × 20/84 × 20 = 1400/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
27/80 = 27 × 21/80 × 21 = 567/1680 - Subtract the two like fractions:
1400/1680 - 567/1680 = 1400 - 567/1680 = 833/1680 - After reducing the fraction, the answer is 119/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/84-54/80 70/84-81/80