Answers

Subtract 20/81 from 98/49

1^st number: 2 0/49, 2^nd number: 20/81

98/49 - 20/81 is 142/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 81 is 3969
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3969
2. For the 1st fraction, since 49 × 81 = 3969,
   98/49 = 98 × 81/49 × 81 = 7938/3969
3. Likewise, for the 2nd fraction, since 81 × 49 = 3969,
   20/81 = 20 × 49/81 × 49 = 980/3969
4. Subtract the two like fractions:
   7938/3969 - 980/3969 = 7938 - 980/3969 = 6958/3969
5. After reducing the fraction, the answer is 142/81
6. In mixed form: 161/81

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