You always do multiplication before addition. So you first need to multiply 2/5 and 1/3. When multiply fractions you multiply both numerators together and both denominators together. Now it should look like this:
3/16 + (2*1 / 5*3)
= 3/16 + 2/15
In order to add fractions the denominators have to be the same. So you have to think of the least common denominator. In this case the least common denominator is :
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You always do multiplication before addition. So you first need to multiply 2/5 and 1/3. When multiply fractions you multiply both numerators together and both denominators together. Now it should look like this:
3/16 + (2*1 / 5*3)
= 3/16 + 2/15
In order to add fractions the denominators have to be the same. So you have to think of the least common denominator. In this case the least common denominator is :
(3*15 / 16*15) + (2*16 / 15*16)
= 45 / 240 + 32/240
now you can add the numerators:
= 77/240 <==Answer
45/240+48/240=93/240