Answers

Subtract 50/45 from 20/84

1^st number: 20/84, 2^nd number: 1 5/45

20/84 - 50/45 is -55/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 45 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 84 × 15 = 1260,
   20/84 = 20 × 15/84 × 15 = 300/1260
3. Likewise, for the 2nd fraction, since 45 × 28 = 1260,
   50/45 = 50 × 28/45 × 28 = 1400/1260
4. Subtract the two like fractions:
   300/1260 - 1400/1260 = 300 - 1400/1260 = -1100/1260
5. After reducing the fraction, the answer is -55/63

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