Subtract 36/84 from 1/45
1/45 - 36/84 is -128/315.
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,
1/45 = 1 × 28/45 × 28 = 28/1260 - Likewise, for the 2nd fraction, since 84 × 15 = 1260,
36/84 = 36 × 15/84 × 15 = 540/1260 - Subtract the two like fractions:
28/1260 - 540/1260 = 28 - 540/1260 = -512/1260 - After reducing the fraction, the answer is -128/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/45-36/84 1/45-72/84 1/90-36/84 3/45-36/84 5/45-36/84 7/45-36/84