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Korolek [52]
3 years ago
6

20 1/2 + -50 3/4 please help me im bad at math​

Mathematics
2 answers:
tankabanditka [31]3 years ago
8 0

given

20 \times \frac{1}{2}  +  \:  - 50 \times \frac{3}{4}

negative × positive = negative

therefore the equation is written as

20 \times \frac{1}{2}  - 50 \times \frac{3}{4}

20÷2 =10

50÷4 = 25/2

now the general equation is

10 -   \frac{25 \times 3}{4}

= 10 -  \frac{75}{4}

now we find the L.C.M by multiplying the denominators which is 4×1 = 4 as the L. C. M,

now multiply through by the L . C .M which is 4

= 4 \times 10 - 4 \times  \frac{75}{4}

= 40 - 75

=  - 35

as our final answer.

bonufazy [111]3 years ago
3 0

-30 1/4

Hope it helps, if you need the explanation how i did this comment :)

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