Mathematics第 5 / 120 题
Convert the mixed number 2 1/4 to an improper fraction.
a.9/4
b.6/4
c.8/4
d.7/4
解析
Multiply the whole number by the denominator and add the numerator: 2 x 4 + 1 = 9. Place that over the original denominator to get 9/4.
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