Add. a. 3 min 45 sec +4 min 15 sec a c. 2 h 25 min +35 min e. 6 years 9 months +8 years Subtract.
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Answer:
a. 3.45+4.15=8 minutes
c. 2.25 + 0.35 = 3 hours
e. 6.75+8= 14 years and 9 months
here it is 6.75 because 9 months equal to 0.75 year and please mark me as brainliest
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