Subtract 1/42 from 35/5, Solve 7 0/5

Subtract 1/42 from 35/5

1^st number: 7 0/5, 2^nd number: 1/42

35/5 - 1/42 is 293/42.

Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 5 × 42 = 210,
35/5 = 35 × 42/5 × 42 = 1470/210
Likewise, for the 2nd fraction, since 42 × 5 = 210,
1/42 = 1 × 5/42 × 5 = 5/210
Subtract the two like fractions:
1470/210 - 5/210 = 1470 - 5/210 = 1465/210
After reducing the fraction, the answer is 293/42
In mixed form: 641/42

MathStep (Works offline)

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