Answers

Subtract 70/27 from 90/40

1^st number: 2 10/40, 2^nd number: 2 16/27

90/40 - 70/27 is -37/108.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 27 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 40 × 27 = 1080,
   90/40 = 90 × 27/40 × 27 = 2430/1080
3. Likewise, for the 2nd fraction, since 27 × 40 = 1080,
   70/27 = 70 × 40/27 × 40 = 2800/1080
4. Subtract the two like fractions:
   2430/1080 - 2800/1080 = 2430 - 2800/1080 = -370/1080
5. After reducing the fraction, the answer is -37/108

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