Subtract 14/30 from 18/63
18/63 - 14/30 is -19/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 30 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
18/63 = 18 × 10/63 × 10 = 180/630 - Likewise, for the 2nd fraction, since 30 × 21 = 630,
14/30 = 14 × 21/30 × 21 = 294/630 - Subtract the two like fractions:
180/630 - 294/630 = 180 - 294/630 = -114/630 - After reducing the fraction, the answer is -19/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/63-14/30 18/63-28/30 18/63-14/60 54/63-14/30 18/63-42/30 18/63-14/90 90/63-14/30 18/63-70/30 18/63-98/30