Subtract 4/63 from 90/30
1st number: 3 0/30, 2nd number: 4/63
90/30 - 4/63 is 185/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 30 × 21 = 630,
90/30 = 90 × 21/30 × 21 = 1890/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
4/63 = 4 × 10/63 × 10 = 40/630 - Subtract the two like fractions:
1890/630 - 40/630 = 1890 - 40/630 = 1850/630 - After reducing the fraction, the answer is 185/63
- In mixed form: 259/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/30-8/63 90/60-4/63 90/30-12/63 90/30-20/63 90/30-28/63