Answers

Subtract 15/50 from 70/21

1^st number: 3 7/21, 2^nd number: 15/50

70/21 - 15/50 is 91/30.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 50 is 1050
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1050
2. For the 1st fraction, since 21 × 50 = 1050,
   70/21 = 70 × 50/21 × 50 = 3500/1050
3. Likewise, for the 2nd fraction, since 50 × 21 = 1050,
   15/50 = 15 × 21/50 × 21 = 315/1050
4. Subtract the two like fractions:
   3500/1050 - 315/1050 = 3500 - 315/1050 = 3185/1050
5. After reducing the fraction, the answer is 91/30
6. In mixed form: 31/30

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