Solving 3870÷21
- Rewrite the Division as Multiplication by the Reciprocal:
3870÷21=3870×12
- Multiply the Numerators: 70×2=140
- Multiply the Denominators: 38×1=38
- Form the New Fraction: 3870×21=38140
Let's Simplify 38140
- Find the Greatest Common Divisor (GCD) of 140 and 38. The GCD of 140 and 38 is 2.
- Divide both the numerator and the denominator by the GCD:38÷2140÷2=1970
Answer 3870÷21=1970
The following animation demonstrates the divide-by,
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