Answers

Subtract 8/90 from 56/21

1^st number: 2 14/21, 2^nd number: 8/90

56/21 - 8/90 is 116/45.

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,
   56/21 = 56 × 30/21 × 30 = 1680/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   8/90 = 8 × 7/90 × 7 = 56/630
4. Subtract the two like fractions:
   1680/630 - 56/630 = 1680 - 56/630 = 1624/630
5. After reducing the fraction, the answer is 116/45
6. In mixed form: 226/45

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