tính theo mẫu: mẫu:\(3+\frac{4}{5}=\frac{3}{1}+\frac{4}{5}=\frac{15}{5}+\frac{4}{5}=\frac{19}{5}\) \(\frac{3}{5}+5=\)
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TL
a) \(\frac{3}{4}+\frac{4}{4}=\frac{7}{4}\)
\(\frac{5}{9}+\frac{7}{9}=\frac{12}{9}=\frac{4}{3}\)
nha bn
HT
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1. It (be) ……………………is…………. fantastic.
2. In the mornings we (walk) ……………walk………………….in the streets of London.
3. The weather (be) ………………is……………………strangely fine.
4. It (not / rain) ………isnt rain………………………. a lot.
5. They………played……………. (play) basketball last week.
6. He (not do) …………doesnt do……………. the homework.
7. My sister (clean)…………cleaned…………….the bathroom 2 hours ago.
8. She has never ……………visited…………..(visit) me.
9. We (listen)……………listened…………….to music yesterday.
10. Ann …………………wanted…………(want) to sing yesterday.
11. We …………………played…………..(play) tennis 2 days ago.
12. The building …………was………………….(be) on fire last week.
13. I usually …………helps……………..(help) my neighbors.
14. Andy (work)……….is working………………in the garden.
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TL
1 x 47 + 2 x 47 + 2 x 47 + 3 x 47 + 4 x 47=47x`(1+2+2+3+4)
=47x12
=564
nha bn
HT
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3/5 + 5 = 3/5 + 5/1 = 28/5 + 3/5 = 28/5
3/5 + 5 = 3/5 + 25/5 = 28/5
Chúc bạn học tốt.
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