=3.2×7/4+2

=5.6+2

=7.6

3×7/8+3×7/8.

=3/8×(4/7+3/7)

=3/8× 1

=3/8

65438+6×7 inches 9+65438+6÷7 inches 9.

=6/ 19×(6/7+ 1/7)

=6/ 19× 1

=6/ 19

5×8×x=5 (solving equation)

5x=5

x= 1

1. Use1.58m long iron wire to make a rectangle with a length of 4m 25. How many meters wide is it?

8/ 15÷2-4/25

=4/ 15-4/25

= 8/75m

2.54 3/5cm many sheets of paper do you need to stack with a thickness of 3/5 cm, and how many sheets of paper do you need to stack with a thickness of 8/9 cm?

54×(8/9÷3/5)

=54×40/27

=80 sheets