Add 20/72 and 35/40
20/72 + 35/40 is 83/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
20/72 = 20 × 5/72 × 5 = 100/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
35/40 = 35 × 9/40 × 9 = 315/360 - Add the two like fractions:
100/360 + 315/360 = 100 + 315/360 = 415/360 - 415/360 simplified gives 83/72
- So, 20/72 + 35/40 = 83/72
In mixed form: 111/72
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