Solutions by everydaycalculation.com

This multiplication involving fractions can also be rephrased as "What is 1/45 of 21/70?"

145 × 2170 is 1150.

- Simply multiply the numerators and denominators separately:
- 145 × 2170 = 1 × 2145 × 70 = 213150
- After reducing the fraction, the answer is 1150

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