Answers

Subtract 6/90 from 20/4

1^st number: 5 0/4, 2^nd number: 6/90

20/4 - 6/90 is 74/15.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 4 × 45 = 180,
   20/4 = 20 × 45/4 × 45 = 900/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   6/90 = 6 × 2/90 × 2 = 12/180
4. Subtract the two like fractions:
   900/180 - 12/180 = 900 - 12/180 = 888/180
5. After reducing the fraction, the answer is 74/15
6. In mixed form: 414/15

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