Add 7/9 and 20/40
7/9 + 20/40 is 23/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 9 × 40 = 360,
7/9 = 7 × 40/9 × 40 = 280/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
20/40 = 20 × 9/40 × 9 = 180/360 - Add the two like fractions:
280/360 + 180/360 = 280 + 180/360 = 460/360 - 460/360 simplified gives 23/18
- So, 7/9 + 20/40 = 23/18
In mixed form: 15/18
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