Answers

Subtract 72/70 from 15/4

1^st number: 3 3/4, 2^nd number: 1 2/70

15/4 - 72/70 is 381/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 70 is 140
   
   Next, find the equivalent fraction of both fractional numbers with denominator 140
2. For the 1st fraction, since 4 × 35 = 140,
   15/4 = 15 × 35/4 × 35 = 525/140
3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
   72/70 = 72 × 2/70 × 2 = 144/140
4. Subtract the two like fractions:
   525/140 - 144/140 = 525 - 144/140 = 381/140
5. In mixed form: 2101/140

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