Add and sumplify 1/4 +3/10
2 answers:
1/4 + 3/10
find the common denominator which is 20
multiply by 5 for 1/4
1(5)/4(5)=5/20
multiply by 2 for 3/10
3(2)/10(2)=6/20
5/20+6/20=11/20
answer:
11/20
Answer:
11/20
Step-by-step explanation:
first find a common denominator
choices could be 20 or 40
let's use 20
how many times does 4 go into 20? 5 times
1/4 = 5/20
how many times does 10 go into 20? 2 times
3/10 = 6/20
now we can add the fractions because they have a common denominator
5/20 + 6/20 = 11/20
this can not be simplified.
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