Answers

Subtract 3/8 from 81/70

1^st number: 1 11/70, 2^nd number: 3/8

81/70 - 3/8 is 219/280.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 8 is 280
   
   Next, find the equivalent fraction of both fractional numbers with denominator 280
2. For the 1st fraction, since 70 × 4 = 280,
   81/70 = 81 × 4/70 × 4 = 324/280
3. Likewise, for the 2nd fraction, since 8 × 35 = 280,
   3/8 = 3 × 35/8 × 35 = 105/280
4. Subtract the two like fractions:
   324/280 - 105/280 = 324 - 105/280 = 219/280

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