Equivalent Fractions

{"questions":[{"content":"Which fraction is equivalent to 1/2?<br>[[choice-1]]","widgets":{"choice-1":{"type":"choice","options":["2/4","2/3","3/4","1/4"],"answer":[0],"explanations":["1/2 = 2/4.","","",""]}},"hints":["Multiply the numerator and denominator by 2."],"explanation":"1/2 = 2/4."},{"content":"Complete the equivalent fraction: 1/3 = __/6.<br>[[input-2]]","widgets":{"input-2":{"type":"input","answer":"2"}},"hints":["The denominator was multiplied by 2."],"explanation":"Multiply the numerator by 2 as well: 1/3 = 2/6."},{"content":"Which fraction is equivalent to 3/4?<br>[[choice-3]]","widgets":{"choice-3":{"type":"choice","options":["6/8","4/5","3/8","9/16"],"answer":[0],"explanations":["3/4 = 6/8.","","",""]}},"hints":["Double both parts of 3/4."],"explanation":"3/4 = 6/8."},{"content":"Why does multiplying both parts of a fraction by the same number keep its value?<br>[[choice-4]]","widgets":{"choice-4":{"type":"choice","options":["The size named by the fraction stays the same","The numerator disappears","The denominator becomes zero","Every fraction becomes one whole"],"answer":[0],"explanations":["Both the number of selected parts and the total number of parts change by the same factor.","","",""]}},"hints":["Think about dividing the same whole into more, smaller pieces."],"explanation":"Both the number of selected parts and the total number of parts change by the same factor."}],"mix":1}