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2 years ago

"Simplify: i) -2 + ( 3 / 8 ) + ( - 1 / 5 ) ii) (2/3) + ( -7/11) + (-1/4 ) pls say fast

Mathematics

2 answers:

natka813 [3]2 years ago

4 0

Answer:

$\frac{-73}{40}$

$\frac{-29}{132}$

Step-by-step explanation:

$-\frac{2}{1}+\frac{3}{8}-\frac{1}{5}$

$-\frac{80}{40}+\frac{15}{40}-\frac{8}{40}$

$\frac{-80+15-8}{40}$

$\frac{-73}{40}$

$\frac{2}{3}-\frac{7}{11}-\frac{1}{4}$

$\frac{88}{132}-\frac{84}{132}-\frac{33}{132}$

$\frac{88-84-33}{132}$

$\frac{-29}{132}$

RideAnS [48]2 years ago

3 0

Answer:

-1 33/40

- 29/132

Step-by-step explanation:

i) -2 + ( 3 / 8 ) + ( - 1 / 5 ) = -2 + 3/8 - 1/5=

- 2 + 15/40- 8/40= -2 + 7/40= -1 33/40

ii) (2/3) + ( -7/11) + (-1/4 ) = 2/3 - 7/11 - 1/4=

2/3 - (28+11)/44= 2/3 - 39/44= (2*44- 3*39) /3*44= - 29/132

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