A= 13/22×11/39
A= 1/2×1/3
A= 1/6
B= 21/25×45/14
B= 3/5×9/2
B= 27/10
13/22 × 11/39
=(13×11)/(22×39)
=143/858
=(143÷143)/(858÷143)
=1/6
21/25×45/14
=(21×45)/(25×14)
=945/350
=(945÷35)/(350÷35)
=27/10
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A= 13/22×11/39
A= 1/2×1/3
A= 1/6
B= 21/25×45/14
B= 3/5×9/2
B= 27/10
13/22 × 11/39
=(13×11)/(22×39)
=143/858
=(143÷143)/(858÷143)
=1/6
21/25×45/14
=(21×45)/(25×14)
=945/350
=(945÷35)/(350÷35)
=27/10