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1.9x5/81=5/92.7x3/32=21/323.45x7/54=35/64.21x6/35=18/55.51x3/17=96.37x2/16=74/167.14x3/28-1/2=18.12x7/36-2=1/39.23x2/16-1/8=11/410.21x2/9-5/12=17/411.9 × 5/6 + 5/6 =25/312.3 × 2/9 + 1/3 =113.101 × 1/5 – 1/5 × 21 =1614.45 × 2/3 + 1/3 × 15 =35
15.5/9 × 18 – 14 × 2/7 =6
16.8 × 4/5 + 8 × 11/5 =2417.7 × 5/49 + 3/14 =13/14
18.8× 5/4 + 1/4 =41/4
19.12× 5/6 – 2/3 ×9=420.12x5/18-14x2/21=2
15.5/9 × 18 – 14 × 2/7 =6
16.8 × 4/5 + 8 × 11/5 =2417.7 × 5/49 + 3/14 =13/14
18.8× 5/4 + 1/4 =41/4
19.12× 5/6 – 2/3 ×9=420.12x5/18-14x2/21=2
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