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7 is not the greatest common factor (GCF) of 15, 30, and 35 because 7 does not evenly divide into all three numbers. The GCF is the largest number that can divide all three numbers without leaving a remainder, and in this case, the GCF is actually 5 since 5 divides evenly into all three numbers.
If there is a remainder of 8 when they divide into 113, then they must be factors of 113 - 8 = 105, but not factors of 113, and greater than 8: The factors of 105 are: 1, 3, 5, 7, 15, 21, 35, 105 The factors of 113 are: 1, 113 Thus the 3 numbers which divide 113 with a remainder of 8 are 15, 21, 35, 105 (oops, there are 4 numbers which satisfy the criteria - I never could count...)
They can divide by ten.
Divide the numerator by the denominator. The number above the line is the whole number and the remainder over the divisor is the fraction. For example: 37/5 Divide 37 by 5. The whole number is 7 (5 X 7 is 35). The remainder is 2, so the fraction is 2/5. The mixed number is 7 2/5.
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