Answers

Subtract 90/27 from 98/20

1^st number: 4 18/20, 2^nd number: 3 9/27

98/20 - 90/27 is 47/30.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 27 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 20 × 27 = 540,
   98/20 = 98 × 27/20 × 27 = 2646/540
3. Likewise, for the 2nd fraction, since 27 × 20 = 540,
   90/27 = 90 × 20/27 × 20 = 1800/540
4. Subtract the two like fractions:
   2646/540 - 1800/540 = 2646 - 1800/540 = 846/540
5. After reducing the fraction, the answer is 47/30
6. In mixed form: 117/30

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