Subtract 90/42 from 24/45, Solve 24/45

Subtract 90/42 from 24/45

1^st number: 24/45, 2^nd number: 2 6/42

24/45 - 90/42 is -169/105.

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

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 45 × 14 = 630,
24/45 = 24 × 14/45 × 14 = 336/630
Likewise, for the 2nd fraction, since 42 × 15 = 630,
90/42 = 90 × 15/42 × 15 = 1350/630
Subtract the two like fractions:
336/630 - 1350/630 = 336 - 1350/630 = -1014/630
After reducing the fraction, the answer is -169/105

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