Answers

Subtract 16/90 from 50/21

1^st number: 2 8/21, 2^nd number: 16/90

50/21 - 16/90 is 694/315.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 21 × 30 = 630,
   50/21 = 50 × 30/21 × 30 = 1500/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   16/90 = 16 × 7/90 × 7 = 112/630
4. Subtract the two like fractions:
   1500/630 - 112/630 = 1500 - 112/630 = 1388/630
5. After reducing the fraction, the answer is 694/315
6. In mixed form: 264/315

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