PLs Answer This Step By Step
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you have to add that all like
Step-by-step explanation:
1) 2/5 + 3/10. lcm of 5 and 10 = 10
2/5 ×2 = 4/10
3/10 + 4/10 = 7/10 km travelled by bus
2) 2/5 - 1/5 = lcm of 5 is 5
= 1/5
3) 2/5+3/10= 7/10 + 1/5 = lcm of 5 and 10 is 10
7/10 already has 10 as denominator so make denominator in 1/5 as 10
= 1/5× 2= 2/10 = 7/10- 2/10= 5/10
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