4 over 10 12 over 30 and 8 over 40
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To get the fraction equivalents of 8/15:Multiply 8/15 by 2/2, 3/3, 4/4, 5/5,...Fraction equivalents of 8/15= 16/30, 24/45, 32/60, 40/75,...
It is the negative of the sum of the two positive equivalents. For example, (-5) + (-8) = -[5 + 8] = -13
12 over 30 = 2 to 5
To find equivalent fractions multiply (or divide) the numerator (top number) and denominator (bottom number) by the same number. With a mixed number, only the fractional part need be changed, though it could be converted to an improper fraction first and equivalents of that found: Examples of equivalent fractions to 2 3/5: 2 3/5 = 2 (3×2)/(5×2) = 2 6/10 2 3/5 = 2 (3×9)/(5×9) = 2 27/45 2 3/5 = (2×5+3)/5 = 13/5 (converted to an improper fraction) 2 3/5 = (13×2)/(5×2) = 26/10 2 3/5 = (13×9)/(5×9) = 117/45
2/5 + 8/5 = 10/5 = 2