The answer is: 0.4(:
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Seven and eight tenths can be written as 7.8 in decimal notation.
To express 4 and 8 tenths as a decimal, you simply write it as 4.8. This is because the tenths place represents the first decimal place after the whole number. So, 8 tenths is equivalent to 0.8 in decimal form.
It is: 4/10 = 0.4 as a decimal
To write six and eight tenths in decimal form, you simply combine the whole number part (6) with the decimal part (0.8). This gives you 6.8 as the decimal form of six and eight tenths. In decimal notation, the place value of each digit to the right of the decimal point decreases by a factor of 10, with the first digit after the decimal point representing tenths.
Four tenths =Fraction=4/10Decimal=0.4