What is 3-2/7-12/21 ?

The solution to 3-2/7-12/21 is 2 1/7

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3-2/7-12/21

3 - \frac{2}{7} - \frac{12}{21}

2 \frac{1}{7}

Solution steps

3 - \frac{2}{7} - \frac{12}{21}

\frac{12}{21} = \frac{4}{7}

= 3 - \frac{2}{7} - \frac{4}{7}

Follow the PEMDAS order of operations

Add and subtract (left to right)

3 - \frac{2}{7} - \frac{4}{7} : \frac{15}{7}

= \frac{15}{7}

Convert improper fractions to mixed numbers:

\frac{15}{7} = 2 \frac{1}{7}

= 2 \frac{1}{7}

1 \frac{1}{4} + (3 \frac{2}{3} + 5 \frac{3}{4})

7 (1 - 1) + 8

10 \times 10 + \frac{1}{2} \times 1 0^{2}

8 \cdot 18 \div 4 + 15

3^{3} - 3^{2}