1) 2,4 + 1 5\7 = 24\10 + 12\7 = 168+120\70 = 288\70
2) 288\70 * 4,375 = 288\70 * 4375\1000 = 288\14 * 875\1000= 252 000\14 000=18
3) 2\3 - 1\6 = 4-1\6 = 3\6 = 1\2
4) 18 : 1.2 = 18\1 * 2\1 = 36
вторая половина
1) 275\100 - 11\6 = 825-550 \ 300 = 275\300
2) 275\300 * 21 = 275\300 * 21\1 = 1925\100
3) 163\20 - 45\100 = 815 - 45 \ 100 = 770\100
4) 1925\100 : 770\100 = 1925\100 * 100\770 = 385\154 = 2,5
5) 36 - 2,5 = 33,5
6) 335\10 : 76\200 = 335\10 * 200\67 = 5\10 * 200\1 = 1000\10 = 100
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Answers & Comments
1) 2,4 + 1 5\7 = 24\10 + 12\7 = 168+120\70 = 288\70
2) 288\70 * 4,375 = 288\70 * 4375\1000 = 288\14 * 875\1000= 252 000\14 000=18
3) 2\3 - 1\6 = 4-1\6 = 3\6 = 1\2
4) 18 : 1.2 = 18\1 * 2\1 = 36
вторая половина
1) 275\100 - 11\6 = 825-550 \ 300 = 275\300
2) 275\300 * 21 = 275\300 * 21\1 = 1925\100
3) 163\20 - 45\100 = 815 - 45 \ 100 = 770\100
4) 1925\100 : 770\100 = 1925\100 * 100\770 = 385\154 = 2,5
5) 36 - 2,5 = 33,5
6) 335\10 : 76\200 = 335\10 * 200\67 = 5\10 * 200\1 = 1000\10 = 100