You'll find that -1.8 is equal to negative nine fifths. Let's step through it. -9/5 = -(5/5 + 4/5) = -1 4/5 = -1 8/10 = -1.8
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To divide by a fraction, multiply by its reciprocal. In this instance, -6/15 / 9/5 = -6/15 x 5/9 This is equal to -30/135 or, when expressed as a decimal, -0.2 recurring (that is, -0.2222...)
- 2.25
Expressed as a proper fraction in its simplest form, 2/3 x 9/10 = 3/5 or three fifths. Expressed as a decimal, this is equal to 0.6.
It is nine tenths. And it should be fifths, not fiths!
one and five tenths or one and a half