Answers

Subtract 35/48 from 42/90

42/90 - 35/48 is -21/80.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 48 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 90 × 8 = 720,
   42/90 = 42 × 8/90 × 8 = 336/720
3. Likewise, for the 2nd fraction, since 48 × 15 = 720,
   35/48 = 35 × 15/48 × 15 = 525/720
4. Subtract the two like fractions:
   336/720 - 525/720 = 336 - 525/720 = -189/720
5. After reducing the fraction, the answer is -21/80

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