Answers

Subtract 70/63 from 84/30

1^st number: 2 24/30, 2^nd number: 1 7/63

84/30 - 70/63 is 76/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 63 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 30 × 21 = 630,
   84/30 = 84 × 21/30 × 21 = 1764/630
3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
   70/63 = 70 × 10/63 × 10 = 700/630
4. Subtract the two like fractions:
   1764/630 - 700/630 = 1764 - 700/630 = 1064/630
5. After reducing the fraction, the answer is 76/45
6. In mixed form: 131/45

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