[tex] \frac{21}{4} \div1 \frac{1}{4} \times 1 \frac{1}{4} =[/tex] pls tolong kerjain besok tugasnya mau di kumpull pls

[tex] \frac{21}{4} \div 1 \frac{1}{4} \times 1 \frac{1}{4} = \\ \frac{21}{4} \div \frac{5}{4} \times \frac{5}{4} = \\ \frac{21}{4} \times \frac{4}{5} \times \frac{5}{4} = \\ \frac{420}{80} = \frac{21}{4} = 5 \frac{1}{4} [/tex]


Maaf kalau salah....