7/9×1.25+2.5×7/9-2又3/4×1/3等于多少?
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7/9×1.25+2.5×7/9-2又3/4×1/3
=7/9×(1.25+2.5)-11/4×1/3
=7/9×3.75-11/12
=7/9×15/4-11/12
=35/12-11/12
=24/12
=2
=7/9×(1.25+2.5)-11/4×1/3
=7/9×3.75-11/12
=7/9×15/4-11/12
=35/12-11/12
=24/12
=2
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7/9×1.25+2.5×7/9-2又3/4×1/3
=7/9×(1.25+2.5)-11/8×1/3
=7/9×15/4-11/24
=35/12-11/24
=70/24-11/24
=59/24
=2又11/24
=7/9×(1.25+2.5)-11/8×1/3
=7/9×15/4-11/24
=35/12-11/24
=70/24-11/24
=59/24
=2又11/24
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7/9×1.25+2.5×7/9-2又3/4×1/3等于多少。
解:
7/9×1.25+2.5×7/9-2又3/4×1/3
=7/9×(1.25+2.5)-11/4×1/3
=7/9×3.75-11/4×1/3
=7/9×15/4-11/12
=35/12-11/12
=24/12
=2
解:
7/9×1.25+2.5×7/9-2又3/4×1/3
=7/9×(1.25+2.5)-11/4×1/3
=7/9×3.75-11/4×1/3
=7/9×15/4-11/12
=35/12-11/12
=24/12
=2
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展开全部
7/9×1.25+2.5×7/9-11/4×1/3
=7/9×3.75-11/12
=7×1.25/3-11/12
=(7×1.25×4-11)÷12
=(35-11)÷12
=2
=7/9×3.75-11/12
=7×1.25/3-11/12
=(7×1.25×4-11)÷12
=(35-11)÷12
=2
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