Answers

Subtract 75/20 from 70/50

1^st number: 1 20/50, 2^nd number: 3 15/20

70/50 - 75/20 is -47/20.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 20 is 100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 100
2. For the 1st fraction, since 50 × 2 = 100,
   70/50 = 70 × 2/50 × 2 = 140/100
3. Likewise, for the 2nd fraction, since 20 × 5 = 100,
   75/20 = 75 × 5/20 × 5 = 375/100
4. Subtract the two like fractions:
   140/100 - 375/100 = 140 - 375/100 = -235/100
5. After reducing the fraction, the answer is -47/20

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