How do i add and subtract fractions? that would help me a lot

Check to see if the denominators of the fractions are the same. Convert them to identical fractions of the same denominator if they don't have the same denominator. Add or remove the numbers in the numerator until they have the same denominator. Put the new numerator over the denominator in your answer.

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step-by-step explanation:

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5