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nata0808 [166]
3 years ago
14

Perform the indicated operation . 10 3/7+ 19 5/9

Mathematics
1 answer:
kow [346]3 years ago
3 0

make improper fractions first. Then look for a common denominator (7*9) you will get something like this:

((73*9 + 9*19*7)/(63))

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The age of Tony and Vihaan are in the ratio of 8:7. Six years later, their ages will be in the ratio 10:9. Find their ages.
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Answer:

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Step-by-step explanation:

the ratio of their ages is 8 : 7 = 8x : 7x ( x is a multiplier )

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Express the ratio in fractional form

\frac{8x+6}{7x+6} = \frac{10}{9} ( cross- multiply )

9(8x + 6) = 10(7x + 6) ← distribute parenthesis on both sides

72x + 54 = 70x + 60 ( subtract 70x from both sides )

2x + 54 = 60 ( subtract 54 from both sides )

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