LT 2.1 A O NE - S T EP E QUATIONS - F RACTIONS Review Box Mixed Number 1 ½ It combines a regular number with a fraction Improper Fraction 3/2 Fractions where the top number (numerator) is bigger than the bottom number (denominator)
Cont. Review Box Convert Mixed Number to an Improper Fraction Multiply the denominator by the “regular” number Add the numerator to step 1 or the multiplication (denominator x “regular” number) Put answer in numerator Keep the denominator Example: 1 ½ 2 x 1 = 2, 2 + 1 = 3 3/2
cont. review box Convert Improper Fraction to a Mixed Number Do long division Divide the numerator by the denominator Your answer is the “regular” number The remainder is the numerator of the fraction, the denominator stays the same Example: 45/4 Fraction is division!
A DDING & S UBTRACTING F RACTIONS WITH LIKE DENOMINATORS You ONLY add/subtract the numerators The denominators stays the same
Adding & Subtracting Fractions with unlike denominators You must have “common” (the same) denominators. Once you have the same denominator, you can add/subtract the fractions. You ONLY add/subtract the numerators The denominators stays the same
H OW C AN YOU F IND THE COMMON DENOMINATOR ? H OW D O YOU CHANGE A FRACTION TO HAVE A NEW DENOMINATOR ?
O NE -S TEP E QUATIONS - F RACTIONS Example 1: Example 2: