express 3/8 as a rational number with denominator (a) 48 and (b) -32
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Answered by
1
Answer:
(a) 3/8
we can make the denominator 48 by multiplying 8 with 6.
Therefore the equation becomes 18/48.
Numerator should be multiplied with the same number with which the denominator has been multiplied.It applicable for all mathematical operations.
(b) 3/8
we can make the denominator -32 by multiplying 8 with -4.
Therefore the equation becomes -12/-32
= 12/32.
Minus is cancelled as it is there in both numerator and denominator.
Answered by
2
Step-by-step explanation:
(i) 20
3/5 = (3 × 4)/(5 × 4) = 12/20
(ii) -20
3/5 = 3 × (-4)/5 × (-4) = -(12/20)
(iii) 45
3/5 = (3 × 9)/(5 × 9) = 27/45
(iv) 25
3/5 = (3 × 5)/(5 × 5) = 15/25
(v) – 35
3/5 = (3 × -7)/(5 × -7) = -(12/35)
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