Add 28/72 and 9/45
28/72 + 9/45 is 53/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
28/72 = 28 × 5/72 × 5 = 140/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
9/45 = 9 × 8/45 × 8 = 72/360 - Add the two like fractions:
140/360 + 72/360 = 140 + 72/360 = 212/360 - 212/360 simplified gives 53/90
- So, 28/72 + 9/45 = 53/90
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