SIMPLIFY (2/5+1/7)÷(1/5-1/8)-5/21=?
Answers
Answered by
2
Answer:
2.98
Step-by-step explanation:
1st: 2/5 +. 1/7 = 14+5/35=19/35
2nd: (1/5 + 1/8)-5/21
= ( 8+5/40)-5/21
= 13/40 - 5/21
=273-120/840
= 153/840
now 1st and 2nd
=19/35÷ 153/840
= 19/35 × 840/153
= 2.98
Answered by
3
Answer:
7
Step-by-step explanation:
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