Question

ratio are in proportion or not

4m,7m,12kg,21kg​​

Answer 1

Answer:

yes in proportion

Step-by-step explanation:

4:7 , 12:21 or 4:7

Answer 2

Answer:

4m.

7m

= 12kg. = 4kg

21 kg. 7 kg ( by cancel out of 12 and 21)

= 4kg

7 kg ( in this kg , kg cancel out )

= 4

7

now , about 4m,7m

=4m

7 m ( in this m, m cancel out)

= 4

7

then , take both numbers..

4 = 4

7. = 7

so, rhs = lhs,

so they are in proportion..

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