a) \(\frac{3}{5}+\frac{11}{20}=\frac{12}{20}+\frac{11}{20}\)
\(=\frac{23}{20}\)
b) \(\frac{5}{8}-\frac{4}{9}=\frac{45}{72}-\frac{32}{72}\)
\(=\frac{13}{72}\)
c) \(\frac{9}{16}\times\frac{4}{3}=\frac{9\times4}{16\times3}\)
\(=\frac{36}{48}=\frac{3}{8}\)
a, 3/5 + 11/20= 12/20 + 11/ 20= 23/20
b, 5/8-4/9= 45/72 - 32/72 =13/12
c, 9/16x4/3 = 9x4/16x3 =36/48 =3/4
a ) 3/5 + 11/20 = 12/20 +11/20 = 23/20
b ) 5/8 - 4/9 = 45/72 - 32/72 = 13/72
c ) 9/16 x 4/3 =36/48=3/4
a).3/5+11/20=12/20+11/20=23/20
b).5/8-4/9=45/72-32/72=13/72
c).9/16x4/3=36/48=3/4
a) 115/100 B) 13/72. c) 36/48
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