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Mariam Wallace
Mathematics
17 September, 17:55
What is 7 1/4 minus 2 5/12?
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Winston
17 September, 18:00
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Make the dissimilar fractions similar
get the lcd of the denominators
4 = 4, 8, 12 ...
12 = 12, 24, 36 ...
the lcd of 4 and 12 is 12
1/4 = ?/12
5/12 = ?/12
divide your lcd with the current denominator (in this case 4 and 12)
12:12=1
12:4=3
after dividing it you have to multiply it with the current numerator (1 and 5)
3*1 = 3
1*5 = 5
and these two are now your numerators
1/4 = 3/12
5/12 = 5/12
now you can subtract the fractions
7 3/12 - 2 5/12 = 5 - 2/12
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