Subtract 90/50 from 42/9
1st number: 4 6/9, 2nd number: 1 40/50
42/9 - 90/50 is 43/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 9 × 50 = 450,
42/9 = 42 × 50/9 × 50 = 2100/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
90/50 = 90 × 9/50 × 9 = 810/450 - Subtract the two like fractions:
2100/450 - 810/450 = 2100 - 810/450 = 1290/450 - After reducing the fraction, the answer is 43/15
- In mixed form: 213/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/9-90/50 42/18-90/50 42/27-90/50 42/45-90/50 42/63-90/50