Subtract 25/45 from 1/84
1/84 - 25/45 is -137/252.
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,
1/84 = 1 × 15/84 × 15 = 15/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
25/45 = 25 × 28/45 × 28 = 700/1260 - Subtract the two like fractions:
15/1260 - 700/1260 = 15 - 700/1260 = -685/1260 - After reducing the fraction, the answer is -137/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/84-25/45 1/84-50/45 1/84-25/90 3/84-25/45 1/84-75/45 5/84-25/45 7/84-25/45