Tính A; 2/5 x 3/8 + 3/4 B; 2/5 + 3/8 x 3/4 C; 3/4 ÷ 1/5 – 1/3 D; 3/4 – 1/5 ÷ 1/3 19/11/2021 Bởi Margaret Tính A; 2/5 x 3/8 + 3/4 B; 2/5 + 3/8 x 3/4 C; 3/4 ÷ 1/5 – 1/3 D; 3/4 – 1/5 ÷ 1/3
2/5 × 3/8 + 3/4 = 3/20 + 3/4 = 9/10 2/5 + 3/8 × 3/4 = 2/5 + 9/32 = 109/160 3/4 : 1/5 – 1/3 = 15/4 – 1/3 = 41/12 3/4 – 1/5 : 1/3 = 3/4 – 3/5 = 3/20 Bình luận
Cho chị câu trả lời hay quá và 5* nhé!
2/5 × 3/8 + 3/4
= 3/20 + 3/4
= 9/10
2/5 + 3/8 × 3/4
= 2/5 + 9/32
= 109/160
3/4 : 1/5 – 1/3
= 15/4 – 1/3
= 41/12
3/4 – 1/5 : 1/3
= 3/4 – 3/5
= 3/20