Question

calculati: a) 3×4/15-2×7/10; b) 5×1/6-2×3/4;

Answer 1

a) 3×4/15-2×7/10=

= 12/15-14/10

= 0.8-1.4

= -0.6

b) 5×1/6-2×3/4=

= 5/6-6/4

= 0.8(3)-1.5

= -0.(6)