51.32+х=72÷0.12
51.32+х=600
х=600-51.32
х=548.68
1)10+3=13(градусов )
2)10+5=15(градусов )
3)10-3=7(градусов )
4)10-5=5(градусов )
Ответ: 1 целая 1/5.......
4 и 1/7 * 7/16 = 29/7 * 7/16 = 29*7/7*16 = 29/16 = 1 и 13/16
2/27 : 1 и 1/3 = 2/27 : 4/3 = 2/27 * 3/4 = 2*3/27*4 = 2/9*4 = 1/9*2 = 1/18