Solutions by everydaycalculation.com

1^{st} number: 7 0/9, 2^{nd} number: 21/90

639 ÷ 2190 is 301.

- Find the reciprocal of the divisor

Reciprocal of 2190: 9021 - Now, multiply it with the dividend

So, 639 ÷ 2190 = 639 × 9021 - = 63 × 909 × 21 = 5670189
- After reducing the fraction, the answer is 301

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