Answers

Subtract 30/28 from 90/50

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

90/50 - 30/28 is 51/70.

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,
   30/28 = 30 × 25/28 × 25 = 750/700
4. Subtract the two like fractions:
   1260/700 - 750/700 = 1260 - 750/700 = 510/700
5. After reducing the fraction, the answer is 51/70

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