8.4 plus 40% of a number equals 12, how much is this number five and two fifths * (three fourths + 0.5) / / two and one fourth

8.4+0.4X=12
5.4*1.25/2.25

Two thirds to two fifths reduction process

Two thirds to two fifths reduction process
2/3:2/5
=(2/3)×15:(2/5)×15
=10:6
=5:3;
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8.4 plus 40% of a number equals 12, how much is this number five and two fifths * (three fourths + 0.5) / / two and one fourth

8.4 plus 40% of a number equals 12, how much is this number five and two fifths * (three fourths + 0.5) / / two and one fourth

Two thirds to two fifths reduction process

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