Answers

Subtract 30/50 from 7/20

7/20 - 30/50 is -1/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 50 is 100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 100
2. For the 1st fraction, since 20 × 5 = 100,
   7/20 = 7 × 5/20 × 5 = 35/100
3. Likewise, for the 2nd fraction, since 50 × 2 = 100,
   30/50 = 30 × 2/50 × 2 = 60/100
4. Subtract the two like fractions:
   35/100 - 60/100 = 35 - 60/100 = -25/100
5. After reducing the fraction, the answer is -1/4

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