(20×3/7+4×21/100)-19×3/7=

Question

(20×3/7+4×21/100)-19×3/7=

Answer 1

(20×3/7+4×21/100)-19×3/7=1.2

Comments

3/7это дробь

Answer 2

20 × 3 = 60
60 : 7 = 8.6
4 × 21 = 84
84 : 100 = 8.4
8.4 + 4 = 12.4
19 × 3 = 57
57 : 7 = 8.1
8.4 - 8.1 = 0.3