Subtract 98/70 from 75/45, Solve 1 30/45

Subtract 98/70 from 75/45

1^st number: 1 30/45, 2^nd number: 1 28/70

75/45 - 98/70 is 4/15.

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

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 45 × 14 = 630,
75/45 = 75 × 14/45 × 14 = 1050/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
98/70 = 98 × 9/70 × 9 = 882/630
Subtract the two like fractions:
1050/630 - 882/630 = 1050 - 882/630 = 168/630
After reducing the fraction, the answer is 4/15

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