3/10 ÷ 1/3 =
1 2/3 × 3/5=
2 1/4 ÷ 6/10 =
3 1/4 + 9/10 ÷ 0,8 =
plsssssssss kkkk
1.
[tex] \frac{1}{4} + \frac{1}{3} = \frac{3 + 4}{12} = \frac{7}{12} [/tex]
2.
[tex] \frac{3}{10} \div \frac{1}{3} = \frac{3}{10} \times \frac{3}{1} = \frac{3 \times 3}{10 \times 1} = \frac{9}{10} [/tex]
3.
[tex]1 \frac{2}{3} \times \frac{3}{5} \\ = \frac{5}{3} \times \frac{3}{5} = \frac{5 \times 3}{3 \times 5} = \frac{15}{15} = 1[/tex]
4.
[tex]2 \frac{1}{4} \div \frac{6}{10} \\ = \frac{9}{4} \div \frac{6}{10} = \frac{9}{4} \times \frac{10}{6} = \frac{9 \times 10}{4 \times 6} = \frac{90}{24} = 3 \frac{18}{24} = 3 \frac{3}{4} [/tex]
5.
[tex]3 \frac{1}{4} + \frac{9}{10} \div 0.8 \\ = \frac{13}{4} + \frac{9}{10} \div \frac{8}{10} \\ = \frac{13}{4} + \frac{9}{10} \times \frac{10}{8} \\ = \frac{13}{4} + \frac{9}{8} = \frac{26 + 9}{8} = \frac{35}{8} = 4 \frac{3}{8} [/tex]
#Maaf kalau salah
Jawaban:
3 1/4 × 9/10:0,8
=13/4 × 9/10:8/10
=117/40 × 10/8
=117/32=3 21/32
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