Subtract 1/45 from 42/14, Solve 3 0/14

Subtract 1/45 from 42/14

1^st number: 3 0/14, 2^nd number: 1/45

42/14 - 1/45 is 134/45.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 45 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 14 × 45 = 630,
42/14 = 42 × 45/14 × 45 = 1890/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
1/45 = 1 × 14/45 × 14 = 14/630
Subtract the two like fractions:
1890/630 - 14/630 = 1890 - 14/630 = 1876/630
After reducing the fraction, the answer is 134/45
In mixed form: 244/45

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad