Question

4 /5/7- 2/23+20/2
please give me answer​

Answer 1

Answer:

12.04

Given:-

$\sf 4 \dfrac{5}{7}- 2\dfrac{2}{3} + \dfrac{20}{2}$

To Find :-

Simply It.

How To Convert Mixed Fraction In Normal Fraction :-

Multiply the Whole Number Part with Denominator and add The product to Numerator and keep the Denominater as asusual.

Ex :- $\sf2\dfrac{5}{6}$

$\sf\dfrac{(2\times 6) + 5}{6}$

$\sf\dfrac{12+5}{6}$

$\sf\dfrac{17}{6}$

Solution :-

$\sf 4 \dfrac{5}{7}- 2\dfrac{2}{3} + \dfrac{20}{2}$

$\sf\dfrac{(4\times 7)+5}{7}- \dfrac{(2\times 3)+2}{3}+ \dfrac{20}{2}$

$\sf\dfrac{28+5}{6}- \dfrac{6+2}{3}+ \dfrac{20}{2}$

$\sf\dfrac{33}{6}- \dfrac{8}{3}+10$

L.C.M of 7,3 = 21

$( \frac{33}{7} \times \frac{3}{3}) - ( \frac{8}{3} \times \frac{7}{7}) + (10 \times \frac{21}{21} )$

$\frac{99}{21} - \frac{56}{21} + \frac{210}{21}$

$\frac{99 - 56 + 210}{21}$

$\frac{253}{21}$

= 12.04