Answers

Subtract 70/42 from 70/18

1^st number: 3 16/18, 2^nd number: 1 28/42

70/18 - 70/42 is 20/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 42 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 18 × 7 = 126,
   70/18 = 70 × 7/18 × 7 = 490/126
3. Likewise, for the 2nd fraction, since 42 × 3 = 126,
   70/42 = 70 × 3/42 × 3 = 210/126
4. Subtract the two like fractions:
   490/126 - 210/126 = 490 - 210/126 = 280/126
5. After reducing the fraction, the answer is 20/9
6. In mixed form: 22/9

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