Subtract 50/45 from 75/84
1st number: 75/84, 2nd number: 1 5/45
75/84 - 50/45 is -55/252.
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,
75/84 = 75 × 15/84 × 15 = 1125/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
50/45 = 50 × 28/45 × 28 = 1400/1260 - Subtract the two like fractions:
1125/1260 - 1400/1260 = 1125 - 1400/1260 = -275/1260 - After reducing the fraction, the answer is -55/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/84-50/90