Subtract 10/42 from 90/2
1st number: 45 0/2, 2nd number: 10/42
90/2 - 10/42 is 940/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
90/2 = 90 × 21/2 × 21 = 1890/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
10/42 = 10 × 1/42 × 1 = 10/42 - Subtract the two like fractions:
1890/42 - 10/42 = 1890 - 10/42 = 1880/42 - After reducing the fraction, the answer is 940/21
- In mixed form: 4416/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2-20/42 90/4-10/42 90/2-10/84 90/2-30/42 90/6-10/42 90/2-50/42 90/10-10/42 90/2-70/42 90/14-10/42