Answers

Subtract 20/56 from 24/90

24/90 - 20/56 is -19/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 56 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 90 × 28 = 2520,
   24/90 = 24 × 28/90 × 28 = 672/2520
3. Likewise, for the 2nd fraction, since 56 × 45 = 2520,
   20/56 = 20 × 45/56 × 45 = 900/2520
4. Subtract the two like fractions:
   672/2520 - 900/2520 = 672 - 900/2520 = -228/2520
5. After reducing the fraction, the answer is -19/210

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