To simplify the following scores: 39 / 52, 36 / 54, 88 / 22, 77 / 21, 57 / 19 (2) divide a 7m long rope into eight sections (2) Divide the 7m long rope into 8 sections, 5 sections are () of the rope, and 3 sections are () m long

To simplify the following scores: 39 / 52, 36 / 54, 88 / 22, 77 / 21, 57 / 19 (2) divide a 7m long rope into eight sections (2) Divide the 7m long rope into 8 sections, 5 sections are () of the rope, and 3 sections are () m long


(1) Simplify the following fractions. 39 / 52, 36 / 54, 88 / 22, 77 / 21, 57 / 19
3/4 2/3 4 11/3 3
(2) The 7m long rope is divided into 8 segments, 5 segments are (5 / 8) of the rope, and 3 segments are (21 / 8) m long



1.8 vs. 0.24


1.8:0.24=15:2



24:1.8 reduction ratio


40:3