Question

plzz tell answer correctly​

Answer 1

Answer:

469/30

Step-by-step explanation:

3(1/5) + 7(1/2) .... Mixed Fractions

= {(3*5)+1}/5 + {(7*2)+1}/2

= 16/5 + 15/2

= (16*2)/(5*2) + (15*5)/(2*5) .... Cross multiplication

= 32/10 + 75/10

= (32+75)/10

= 107/10 ..... (1)

9(1/3) - 4(2/5) .... Mixed Fractions

= {(9*3)+1}/3 - {(4*5)+2}/5

= 28/3 - 22/5

= (28*5)/(3*5) - (22*3)/(5*3) .... Cross multiplication

= 140/15 - 66/15

= (140-66)/15

= 74/15 ...... (2)

Adding (1) & (2), we get,

107/10 + 74/15

= (107*3)/(10*3) + (74*2)/(15*2)

= 321/30 + 148/30

= (321+148)/30

= 469/30