Subtract 28/45 from 35/42, Solve 35/42

Subtract 28/45 from 35/42

35/42 - 28/45 is 19/90.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 42 × 15 = 630,
35/42 = 35 × 15/42 × 15 = 525/630
Likewise, for the 2nd fraction, since 45 × 14 = 630,
28/45 = 28 × 14/45 × 14 = 392/630
Subtract the two like fractions:
525/630 - 392/630 = 525 - 392/630 = 133/630
After reducing the fraction, the answer is 19/90

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