Subtract 70/45 from 5/84
1st number: 5/84, 2nd number: 1 25/45
5/84 - 70/45 is -377/252.
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,
5/84 = 5 × 15/84 × 15 = 75/1260 - Likewise, for the 2nd fraction, since 45 × 28 = 1260,
70/45 = 70 × 28/45 × 28 = 1960/1260 - Subtract the two like fractions:
75/1260 - 1960/1260 = 75 - 1960/1260 = -1885/1260 - After reducing the fraction, the answer is -377/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/84-70/45 5/84-70/90 15/84-70/45 25/84-70/45 35/84-70/45