【8/5*(7/3-0.15)+7.8】/(44/5)简算
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![【8/5*(7/3-0.15)+7.8】/(44/5)简算](/uploads/image/z/3791817-9-7.jpg?t=%E3%80%908%2F5%2A%EF%BC%887%2F3-0.15%29%2B7.8%E3%80%91%2F%2844%2F5%EF%BC%89%E7%AE%80%E7%AE%97)
【8/5*(7/3-0.15)+7.8】/(44/5)简算
【8/5*(7/3-0.15)+7.8】/(44/5)简算
【8/5*(7/3-0.15)+7.8】/(44/5)简算
(8/5*(7/3-0.15)+7.8)/(44/5)
= (8/5 * 7/3 - 8/5 *0.15 + 7.8) * 5/44
= (8/5 * 7/3 * 5/44 - 6/25 * 5/44 + 7.8 * 5/44
= (7*8)/(3*44) - 6/(5*44) + 39/44
= (1/44)(56/3 - 6/5 + 39)
= (1/44)(5/3 - 1/5 + 55)
= (1/44)(22/15 + 55)
= 1/4 * (2/15 + 5)
= 77/60