Question

jaya went to buy 5kg of salt.she got two 3 /4kg packet of salt.the rest of the salt she bought in1 /2kg packed. how many 1 /2kg packed did she buy?

Answer 1

she bought 3/4 kg salt packets =3/4+3/4=6/4

remaining need 5-6/4
5/1-6/4
thise 2 are u like fractions so we need chainge into like fractions
1,4 lcm =4

5/1×4/4=20/4
6/4×1/1=6/4
now
20/4-6/4=14/4
14/4 we can write as a 7/2
when we are added 1/2 as a 7 times we get 7/2 so
she need 7 packets of 1/2 kg

Answer 2

Jaya want to buy 5 kg salt
She bought 2 kg 3/4 kg salt i.e 1.5kg salt (2×3÷4)
Rest 3.5 kg salt she will buy by half kg i.e 1/2 kg so we need to divide both 3.5 and 1/2 (0.5)
3.5÷0.5=7 so she need to buy 7 packet of 1/2kg packet