Answers

Subtract 1/84 from 56/20

1^st number: 2 16/20, 2^nd number: 1/84

56/20 - 1/84 is 1171/420.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 20 × 21 = 420,
   56/20 = 56 × 21/20 × 21 = 1176/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   1/84 = 1 × 5/84 × 5 = 5/420
4. Subtract the two like fractions:
   1176/420 - 5/420 = 1176 - 5/420 = 1171/420
5. In mixed form: 2331/420

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