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grandymaker [24]
3 years ago
12

2r/5+7r/15= rewrite the expression by collecting like terms

Mathematics
2 answers:
Natalka [10]3 years ago
5 0
\frac{2r}{5} +  \frac{7r}{15}  --\ \textgreater \  \frac{2r}{5} *  \frac{3}{3} =  \frac{6r}{15} --\ \textgreater \   \frac{6r}{15} +  \frac{7r}{15} --\ \textgreater \   \frac{6r + 7r}{15}  =  \frac{13r}{15}
kramer3 years ago
3 0
<span>2r/5+7r/15=
LCM=15
(15\5=3*2r=6r)
15\15=1*7r=7r
answer=6r+7r\15
answer=13r\15</span>
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