Answers

Subtract 8/84 from 90/45

1^st number: 2 0/45, 2^nd number: 8/84

90/45 - 8/84 is 40/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 84 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 45 × 28 = 1260,
   90/45 = 90 × 28/45 × 28 = 2520/1260
3. Likewise, for the 2nd fraction, since 84 × 15 = 1260,
   8/84 = 8 × 15/84 × 15 = 120/1260
4. Subtract the two like fractions:
   2520/1260 - 120/1260 = 2520 - 120/1260 = 2400/1260
5. After reducing the fraction, the answer is 40/21
6. In mixed form: 119/21

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