Answers

Subtract 20/84 from 70/30

1^st number: 2 10/30, 2^nd number: 20/84

70/30 - 20/84 is 44/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 84 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 30 × 14 = 420,
   70/30 = 70 × 14/30 × 14 = 980/420
3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
   20/84 = 20 × 5/84 × 5 = 100/420
4. Subtract the two like fractions:
   980/420 - 100/420 = 980 - 100/420 = 880/420
5. After reducing the fraction, the answer is 44/21
6. In mixed form: 22/21

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