Add 20/40 and 28/45
20/40 + 28/45 is 101/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
20/40 = 20 × 9/40 × 9 = 180/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
28/45 = 28 × 8/45 × 8 = 224/360 - Add the two like fractions:
180/360 + 224/360 = 180 + 224/360 = 404/360 - 404/360 simplified gives 101/90
- So, 20/40 + 28/45 = 101/90
In mixed form: 111/90
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