Subtract 36/84 from 25/90
25/90 - 36/84 is -19/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 84 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 90 × 14 = 1260,
25/90 = 25 × 14/90 × 14 = 350/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
36/84 = 36 × 15/84 × 15 = 540/1260 - Subtract the two like fractions:
350/1260 - 540/1260 = 350 - 540/1260 = -190/1260 - After reducing the fraction, the answer is -19/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/90-36/84 25/90-72/84 75/90-36/84