Answers

Subtract 21/70 from 50/75

50/75 - 21/70 is 11/30.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 70 is 1050
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1050
2. For the 1st fraction, since 75 × 14 = 1050,
   50/75 = 50 × 14/75 × 14 = 700/1050
3. Likewise, for the 2nd fraction, since 70 × 15 = 1050,
   21/70 = 21 × 15/70 × 15 = 315/1050
4. Subtract the two like fractions:
   700/1050 - 315/1050 = 700 - 315/1050 = 385/1050
5. After reducing the fraction, the answer is 11/30

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