Answers

Subtract 40/90 from 10/35

10/35 - 40/90 is -10/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 35 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 35 × 18 = 630,
   10/35 = 10 × 18/35 × 18 = 180/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   40/90 = 40 × 7/90 × 7 = 280/630
4. Subtract the two like fractions:
   180/630 - 280/630 = 180 - 280/630 = -100/630
5. After reducing the fraction, the answer is -10/63

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