270 times 450 divided by 30
270×450÷30
=270÷30×450
=90×450
=4050
19 times 15 divided by 19 times 15 simple calculation how to write? Quickly! Thank you
15×19÷15×19
=15÷15×19×19
=1×19×19
=19×(20-1)
=19×20-19×1
=380-19
=361
225 divided by 15 times 8 (simple calculation)
225÷15×8 =225×8÷5÷3 =1800÷5÷3 =120
(4 / 3-1 / 5 * 1 / 4) divided by 4 / 15 is easy to calculate
emergency
=4 / 3 / 4 / 15-1 / 20 / 4 / 15
=3 / 5-16
=4 and 13 / 16