Answers

Subtract 72/24 from 63/70

1^st number: 63/70, 2^nd number: 3 0/24

63/70 - 72/24 is -21/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 24 is 840
   
   Next, find the equivalent fraction of both fractional numbers with denominator 840
2. For the 1st fraction, since 70 × 12 = 840,
   63/70 = 63 × 12/70 × 12 = 756/840
3. Likewise, for the 2nd fraction, since 24 × 35 = 840,
   72/24 = 72 × 35/24 × 35 = 2520/840
4. Subtract the two like fractions:
   756/840 - 2520/840 = 756 - 2520/840 = -1764/840
5. After reducing the fraction, the answer is -21/10

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