Answers

Subtract 80/49 from 50/90

1^st number: 50/90, 2^nd number: 1 31/49

50/90 - 80/49 is -475/441.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 49 is 4410
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4410
2. For the 1st fraction, since 90 × 49 = 4410,
   50/90 = 50 × 49/90 × 49 = 2450/4410
3. Likewise, for the 2nd fraction, since 49 × 90 = 4410,
   80/49 = 80 × 90/49 × 90 = 7200/4410
4. Subtract the two like fractions:
   2450/4410 - 7200/4410 = 2450 - 7200/4410 = -4750/4410
5. After reducing the fraction, the answer is -475/441

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