3/8×19/7÷19/4 of 20/7-23/10+12/5
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4
Answer:
7/40
Step-by-step explanation:
=3/8×19/7÷(19/4×20/7)-23/10+12/5
=3/8×19/7÷95/7-23/10+12/5
=(3/8×19/7×7/95)-23/10+12/5
=3/40-23/10+12/5
=(3+96)/40-23/10
=(99-92)/40
=7/40
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