Subtract 8/45 from 4/84
4/84 - 8/45 is -41/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 45 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 84 × 15 = 1260,
4/84 = 4 × 15/84 × 15 = 60/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
8/45 = 8 × 28/45 × 28 = 224/1260 - Subtract the two like fractions:
60/1260 - 224/1260 = 60 - 224/1260 = -164/1260 - After reducing the fraction, the answer is -41/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/84-8/45 4/84-16/45 4/84-8/90 12/84-8/45 4/84-24/45 20/84-8/45 4/84-40/45 28/84-8/45 4/84-56/45