Question

найдите значения выражений 2 58/61+1 12/61 , 4 121/300+7 199/300, 5 380/401+1 127/401, 4 253/540+4 253/540+18 307/540

Answer 1

$2ttdisplaystylefrac{58}{61}+1frac{12}{61}=3frac{70}{61}=3frac{61+9}{61}=4frac{9}{61}$

$4ttdisplaystylefrac{121}{300}+7frac{199}{300}=11frac{320}{300}=12frac{20}{300}=12frac{1}{15}$

$5ttdisplaystylefrac{380}{401}+1frac{127}{401}=6frac{507}{401}=6frac{401+106}{401}=7frac{106}{401}$

$4ttdisplaystylefrac{253}{540}+4frac{253}{540}+18frac{307}{540}=26frac{253+253+307}{540}=26frac{813}{540}=26frac{540+273}{540}=27frac{273}{540}=27frac{91}{180}$