Remember BODMAS (or its equivalent).
45/9+6/2 = (division first) 5 + 3 = (then addition) 8
45
48 divided by 6 plus 45 divided by 9 = 8 + 5 = 13
32*5 - 6/2 = 9*5 - 6/2 = 45 - 3 = 42
47
do this: | 45 6 what divides into them both? _______ 3 | 45 6 now divide --------- 15 2 can they be divided by a common factor? no so now times all the numbers outside 3 times 15 times 2 = 90 90 = LCM of 45 and 6 Trevor, Teacher www.secondteacher.com
45/5 is 8 because 8x5=45. 8-2=6. So the answer is 6.
9 and 2 thirds divided by two = 45/6
45
6
48 divided by 6 plus 45 divided by 9 = 8 + 5 = 13
0.1333
32*5 - 6/2 = 9*5 - 6/2 = 45 - 3 = 42
6.4286
47
do this: | 45 6 what divides into them both? _______ 3 | 45 6 now divide --------- 15 2 can they be divided by a common factor? no so now times all the numbers outside 3 times 15 times 2 = 90 90 = LCM of 45 and 6 Trevor, Teacher www.secondteacher.com
4 5/6 divide 2 3/5 1st step ; convert to improper fractions. Hence 29/5 divide 13/5 2nd step ; Remember the rule for division of fractions. 'CHANGE THE SIGN TO MULTIPLY(X) AND INVERT (TURN OVER) THE RIGHT HAND FRACTION'. Then proceed as multiplying fractions. Hence 29/5 X 5/13 3rd step ; Cancel down any common factors; '5' in this case. Hence 29/1 X 1/13 4th step ; multiply 29/13 5th step ; Convert to a mixed fraction/number. Hence 2 3/13 the answer !!!!!
1846.1333