Answers

Subtract 84/45 from 4/90

1^st number: 4/90, 2^nd number: 1 39/45

4/90 - 84/45 is -82/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 45 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 90 × 1 = 90,
   4/90 = 4 × 1/90 × 1 = 4/90
3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
   84/45 = 84 × 2/45 × 2 = 168/90
4. Subtract the two like fractions:
   4/90 - 168/90 = 4 - 168/90 = -164/90
5. After reducing the fraction, the answer is -82/45

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