For Addition, if the signs are the same, you add and keep the sign. And if they are different, you subtract and keep the sign of the greater absolute value.
For Subtraction, You change the subtraction sign to the addition one and then follow the rules of addition, above.
There are 1000 meters in one Kilometer. 1000m=1km
there are 1000 centimeters in one meter. 100cm=1m
there are 10 millimeters in 1 centimeter. 10mm=1cm
1000mm=1m
You subtract 13 from both sides of the = sign so ×=12
Answer:
3/20=6/40=15/100
Step-by-step explanation:
Multiply 3 by 2 to figure out the numerator for /40 and multiply 20 by 5 to figure out the denominator of 15/
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