Answers

Subtract 7/3 from 81/70

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

81/70 - 7/3 is -247/210.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 3 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 70 × 3 = 210,
   81/70 = 81 × 3/70 × 3 = 243/210
3. Likewise, for the 2nd fraction, since 3 × 70 = 210,
   7/3 = 7 × 70/3 × 70 = 490/210
4. Subtract the two like fractions:
   243/210 - 490/210 = 243 - 490/210 = -247/210

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