Answers

Subtract 18/90 from 24/42

24/42 - 18/90 is 13/35.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 42 × 15 = 630,
   24/42 = 24 × 15/42 × 15 = 360/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   18/90 = 18 × 7/90 × 7 = 126/630
4. Subtract the two like fractions:
   360/630 - 126/630 = 360 - 126/630 = 234/630
5. After reducing the fraction, the answer is 13/35

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