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creativ13 [48]
3 years ago
13

Marta ate a quarter of a whole pie. Edwin ate 1/4 of what was left. Cristina then ate 1/3 of what was left. What fraction of the

pie remains? answer is 3/8 how do you come up with this answer?
Mathematics
2 answers:
Rzqust [24]3 years ago
8 0

<u>Answer:</u>

<u>\frac {3} {8}</u>

<u>Step-by-step explanation:</u>

Maria ate a quarter of a whole pie = \frac{1}{4}

Left over pie = 1 - \frac {1} {4} = \frac {3} {4}

Edwin ate 1/3 of what was left = \frac {1} {4} * \frac {3} {4} = \frac {3} {16}

Left over pie = \frac{3}{4} - \frac{3}{16} =\frac{9}{16}

Cristina ate 1/3 of what was left = \frac{1}{3}*\frac{9}{16}=\frac{3}{16}

Left over pie = \frac{9}{16} - \frac {3} {16} = \frac {6} {16} = \frac {3} {8}

Stells [14]3 years ago
3 0

After Martha ate 1/4 of the pie there is 3/4 left.

Edwin ate 1/4 of 3/4.

so multiply 1/4 and 3/4 ---> 1/4*3/4=3/16

to find the leftover subtract 3/16 from 3/4

3/4-3/16

12/16-3/16=9/16

Christina ate 1/3 of 9/16

multiply 1/3 by 9/16

1/3*9/16=3/16

find the leftover by subtracting 3/16 from 9/16

9/16-3/16=6/16

divide by 2

3/8

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