Solutions by everydaycalculation.com

This multiplication involving fractions can also be rephrased as "What is 21/30 of 12/24?"

2130 × 1224 is 720.

- Simply multiply the numerators and denominators separately:
- 2130 × 1224 = 21 × 1230 × 24 = 252720
- After reducing the fraction, the answer is 720

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