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1. To find decimal or fraction

Just write them in the same order with the required operator.

2. To find value.

Make the terms in the ratio into a coefficient of the variable with which it has been cancelled.

3. To solve proportion

Multiply the mirror digits and divide it by the one term we want to find's mirror number.

.

Just write them in the same order with the required operator.

2. To find value.

Make the terms in the ratio into a coefficient of the variable with which it has been cancelled.

3. To solve proportion

Multiply the mirror digits and divide it by the one term we want to find's mirror number.

.