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Lemur [1.5K]
2 years ago
12

CLASS 6 MATHS!!!! HELP ME PLEASE!!!!!!!​

Mathematics
1 answer:
Elanso [62]2 years ago
6 0

Step-by-step explanation:

\\ 20. \:  \: ( \frac{ - 3}{4} )(4\frac{1}{6} )

\\  =  \frac{ - 3}{4}  \times  \frac{25}{6}

\\  =  \frac{ - 25}{8}

\\  =  - 3.125

\\ 21. \:  \: ( - 3\frac{7}{8} )( - 5\frac{3}{4} )

\\  =  \frac{ - 31}{8}  \times  \frac{ - 23}{4}

\\  =  \frac{713}{32}

\\  = 22.28125

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