Subtract 70/84 from 6/45
6/45 - 70/84 is -7/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
6/45 = 6 × 28/45 × 28 = 168/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
70/84 = 70 × 15/84 × 15 = 1050/1260 - Subtract the two like fractions:
168/1260 - 1050/1260 = 168 - 1050/1260 = -882/1260 - After reducing the fraction, the answer is -7/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/45-70/84 6/90-70/84 18/45-70/84 30/45-70/84 42/45-70/84