Answers

Subtract 72/49 from 1/70

1^st number: 1/70, 2^nd number: 1 23/49

1/70 - 72/49 is -713/490.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 49 is 490
   
   Next, find the equivalent fraction of both fractional numbers with denominator 490
2. For the 1st fraction, since 70 × 7 = 490,
   1/70 = 1 × 7/70 × 7 = 7/490
3. Likewise, for the 2nd fraction, since 49 × 10 = 490,
   72/49 = 72 × 10/49 × 10 = 720/490
4. Subtract the two like fractions:
   7/490 - 720/490 = 7 - 720/490 = -713/490

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