Answers

Subtract 2/70 from 84/72

1^st number: 1 12/72, 2^nd number: 2/70

84/72 - 2/70 is 239/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 70 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 72 × 35 = 2520,
   84/72 = 84 × 35/72 × 35 = 2940/2520
3. Likewise, for the 2nd fraction, since 70 × 36 = 2520,
   2/70 = 2 × 36/70 × 36 = 72/2520
4. Subtract the two like fractions:
   2940/2520 - 72/2520 = 2940 - 72/2520 = 2868/2520
5. After reducing the fraction, the answer is 239/210
6. In mixed form: 129/210

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