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Operation on fractions: Addition and subtraction

Answer Text:
Operation of Fractions:
Addition and Subtraction.
The numerators of fractions whose denominators are equal can be added or subtracted directly.
Example 1
Work out.
a).#1/5 + 2/5#
b).#3/8 + 1/8#
When adding or subtracting numbers with different denominators, we proceed as follows
Step 1 – Find a common denominator,a number that both denominators will go into or L.C.M)
Step 2 – Divide the denominator of each fraction by the common denominator or L.C.M and then multiply the answers by the numerator of each fraction
Step 3 – Add or subtract the numerators as indicated by the operation sign
Step 4 – Change the answer to lowest terms
Example 2.
Work out.
#2/5 + 3/4 =#
#3/7 + 2/3 =#