Answers

Subtract 40/56 from 30/18

1^st number: 1 12/18, 2^nd number: 40/56

30/18 - 40/56 is 20/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 56 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 18 × 28 = 504,
   30/18 = 30 × 28/18 × 28 = 840/504
3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
   40/56 = 40 × 9/56 × 9 = 360/504
4. Subtract the two like fractions:
   840/504 - 360/504 = 840 - 360/504 = 480/504
5. After reducing the fraction, the answer is 20/21

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