Answers

Subtract 30/50 from 90/21

1^st number: 4 6/21, 2^nd number: 30/50

90/21 - 30/50 is 129/35.

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,
   90/21 = 90 × 50/21 × 50 = 4500/1050
3. Likewise, for the 2nd fraction, since 50 × 21 = 1050,
   30/50 = 30 × 21/50 × 21 = 630/1050
4. Subtract the two like fractions:
   4500/1050 - 630/1050 = 4500 - 630/1050 = 3870/1050
5. After reducing the fraction, the answer is 129/35
6. In mixed form: 324/35

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