Answers

Subtract 28/98 from 70/20

1^st number: 3 10/20, 2^nd number: 28/98

70/20 - 28/98 is 45/14.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 98 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 20 × 49 = 980,
   70/20 = 70 × 49/20 × 49 = 3430/980
3. Likewise, for the 2nd fraction, since 98 × 10 = 980,
   28/98 = 28 × 10/98 × 10 = 280/980
4. Subtract the two like fractions:
   3430/980 - 280/980 = 3430 - 280/980 = 3150/980
5. After reducing the fraction, the answer is 45/14
6. In mixed form: 33/14

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