Subtract 84/5 from 75/42
1st number: 1 33/42, 2nd number: 16 4/5
75/42 - 84/5 is -1051/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 5 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 42 × 5 = 210,
75/42 = 75 × 5/42 × 5 = 375/210 - Likewise, for the 2nd fraction, since 5 × 42 = 210,
84/5 = 84 × 42/5 × 42 = 3528/210 - Subtract the two like fractions:
375/210 - 3528/210 = 375 - 3528/210 = -3153/210 - After reducing the fraction, the answer is -1051/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/84-84/5 75/42-84/10 75/42-84/15 75/42-84/25 75/42-84/35