Answers

Subtract 80/18 from 21/56

1^st number: 21/56, 2^nd number: 4 8/18

21/56 - 80/18 is -293/72.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 56 and 18 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 56 × 9 = 504,
   21/56 = 21 × 9/56 × 9 = 189/504
3. Likewise, for the 2nd fraction, since 18 × 28 = 504,
   80/18 = 80 × 28/18 × 28 = 2240/504
4. Subtract the two like fractions:
   189/504 - 2240/504 = 189 - 2240/504 = -2051/504
5. After reducing the fraction, the answer is -293/72

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