(2.65+2.77)/(1.95-0.98)怎么简便计算是(2.65+2.77)/(1.98-0.98)怎么简便计算

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(2.65+2.77)/(1.95-0.98)怎么简便计算
是(2.65+2.77)/(1.98-0.98)怎么简便计算

(2.65+2.77)/(1.98-0.98)
=(2.65+2.77)/1
=2.65+2.77
=2.65+2.35+0.42
=5+0.42
=5.42

去括号
2.65+2.77/1.98
+0.98