Subtract 1/42 from 4/45
445 - 142 is 41630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
445 = 4 × 1445 × 14 = 56630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
142 = 1 × 1542 × 15 = 15630 - Subtract the two like fractions:
56630 - 15630 = 56 - 15630 = 41630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45-1/42 4/45-2/42 4/90-1/42 4/45-1/84 12/45-1/42 4/45-3/42 20/45-1/42 4/45-5/42 28/45-1/42 4/45-7/42