Answers

Subtract 7/70 from 84/21

1^st number: 4 0/21, 2^nd number: 7/70

84/21 - 7/70 is 39/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 70 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 21 × 10 = 210,
   84/21 = 84 × 10/21 × 10 = 840/210
3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
   7/70 = 7 × 3/70 × 3 = 21/210
4. Subtract the two like fractions:
   840/210 - 21/210 = 840 - 21/210 = 819/210
5. After reducing the fraction, the answer is 39/10
6. In mixed form: 39/10

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