Answers

Subtract 28/14 from 49/90

1^st number: 49/90, 2^nd number: 2 0/14

49/90 - 28/14 is -131/90.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 14 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 90 × 7 = 630,
   49/90 = 49 × 7/90 × 7 = 343/630
3. Likewise, for the 2nd fraction, since 14 × 45 = 630,
   28/14 = 28 × 45/14 × 45 = 1260/630
4. Subtract the two like fractions:
   343/630 - 1260/630 = 343 - 1260/630 = -917/630
5. After reducing the fraction, the answer is -131/90

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