Subtract 6/45 from 98/70, Solve 1 28/70

Subtract 6/45 from 98/70

1^st number: 1 28/70, 2^nd number: 6/45

98/70 - 6/45 is 19/15.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 45 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 70 × 9 = 630,
98/70 = 98 × 9/70 × 9 = 882/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
6/45 = 6 × 14/45 × 14 = 84/630
Subtract the two like fractions:
882/630 - 84/630 = 882 - 84/630 = 798/630
After reducing the fraction, the answer is 19/15
In mixed form: 14/15

MathStep (Works offline)

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