Question

Multiplication of Rational Numbers

#1: Solve... -7/9 x 3/5

#2: Solve... -2/5 x 1 1/4

#3: Solve... 1 3/5 x -3/4

#4: Solve... -7/8 x 1 3/7

Answer 1

to multiply fractions you just have to multiply the numerators and denominators.

Answer 2

@Istrasmann ...Not if the denominators don't match you can't. o_O

Answer 3

no, the denominators only have to match for addition and subtraction

Answer 4

@Istrasmann either way, I'm asking for the answers, not knowing how to do it. Otherwise then I'd look up how to do these.

Answer 5

\[\frac{ -7 }{ 9}*\frac{ 3 }{ 5 } = \frac{ -7*3 }{ 9*5 } = \frac{ -21 }{ 45 }=\frac{ -7 }{15 }\]

Answer 6

Like,,this.....@xclaireykinzx

Answer 7

#1 is -21/45
#2 is 1 -1/10
#3 is 1 -9/20
#4 is 1 -21/56
And unless Mrs. Schaffnit was wrong, you do multiply even if the denominators are different. (She was my 7th grade teacher.)

Answer 8

Do the Same for Other things too