Answers

Subtract 20/84 from 70/54

1^st number: 1 16/54, 2^nd number: 20/84

70/54 - 20/84 is 200/189.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 84 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 54 × 14 = 756,
   70/54 = 70 × 14/54 × 14 = 980/756
3. Likewise, for the 2nd fraction, since 84 × 9 = 756,
   20/84 = 20 × 9/84 × 9 = 180/756
4. Subtract the two like fractions:
   980/756 - 180/756 = 980 - 180/756 = 800/756
5. After reducing the fraction, the answer is 200/189
6. In mixed form: 111/189

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