Fractional division: 48 * (1 / 2 + 1 / 3 + 1 / 12) 53 * 52 / 19 8 / 9 * 9 / 8 (25 + 1 / 5) / 5 (7 / 49-9) / 7 (2 / 7 + 6 / 13) * 17 * 13 (4 / 5-1 / 3) * 6 * 10 100 points for correct answers

Fractional division: 48 * (1 / 2 + 1 / 3 + 1 / 12) 53 * 52 / 19 8 / 9 * 9 / 8 (25 + 1 / 5) / 5 (7 / 49-9) / 7 (2 / 7 + 6 / 13) * 17 * 13 (4 / 5-1 / 3) * 6 * 10 100 points for correct answers

48 * (1 / 2 + 1 / 3 + 1 / 12)
=48×1／2＋48×1／3＋48×1／12
=24＋16＋4
=44
53 * 19 / 52
=(52＋1)×19／52
=52×19／52＋19／52
=19＋19／52
=19 and 19 / 52
8 / 9 * 8 / 9
=64／81
(25 + 1 / 5) / 5
=25÷5＋1／5÷5
=5＋1／25
=5 and 1 / 25
(7 / 49-9) / 7
=49÷7－7／9÷7
=7－1／9
=6 and 8 / 9
(2 / 17 + 6 / 13) * 17 * 13
=2／17×17×13＋6／13×17×13
=26＋102
=128
(4 / 5-1 / 3) * 6 * 10
=4／5×6×10－1／3×6×10
=48－20
=28

How to calculate 2140 times 3.8 plus 214 times 63 minus 21.4 times 10?

Put forward 2.14

42 * 1.63 + 3.6 * 4.2,

42*1.63+3.6*4.2
=4.2*16.3+3.6*4.2
=4.2*(16.3+3.6)
=4.2*20
=84