Add 28/45 and 42/72
28/45 + 42/72 is 217/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
28/45 = 28 × 8/45 × 8 = 224/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
42/72 = 42 × 5/72 × 5 = 210/360 - Add the two like fractions:
224/360 + 210/360 = 224 + 210/360 = 434/360 - 434/360 simplified gives 217/180
- So, 28/45 + 42/72 = 217/180
In mixed form: 137/180
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