Answers

Subtract 27/28 from 90/50

1^st number: 1 40/50, 2^nd number: 27/28

90/50 - 27/28 is 117/140.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 28 is 700
   
   Next, find the equivalent fraction of both fractional numbers with denominator 700
2. For the 1st fraction, since 50 × 14 = 700,
   90/50 = 90 × 14/50 × 14 = 1260/700
3. Likewise, for the 2nd fraction, since 28 × 25 = 700,
   27/28 = 27 × 25/28 × 25 = 675/700
4. Subtract the two like fractions:
   1260/700 - 675/700 = 1260 - 675/700 = 585/700
5. After reducing the fraction, the answer is 117/140

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