What is 643\div 7+36-49 ?

The solution to 643\div 7+36-49 is 78 6/7

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643\div 7+36-49

643 \div 7 + 36 - 49

78 \frac{6}{7}

Solution steps

643 \div 7 + 36 - 49

Follow the PEMDAS order of operations

Multiply and divide (left to right)

643 \div 7 : \frac{643}{7}

= \frac{643}{7} + 36 - 49

Add and subtract (left to right)

\frac{643}{7} + 36 - 49 : \frac{552}{7}

= \frac{552}{7}

Convert improper fractions to mixed numbers:

\frac{552}{7} = 78 \frac{6}{7}

= 78 \frac{6}{7}

840 \div 20 - 17 \times 3 + 16

1 + (- 2) \times (- \frac{2}{7})

- 3 (2)^{2} 4

2 + 5 - 3 \times 2 + 10 - 10 \div 5

\frac{- 2 - 8}{- 4 + 5}