Add 40/80 and 70/72
40/80 + 70/72 is 53/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 72 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
40/80 = 40 × 9/80 × 9 = 360/720 - Likewise, for the 2nd fraction, since 72 × 10 = 720,
70/72 = 70 × 10/72 × 10 = 700/720 - Add the two like fractions:
360/720 + 700/720 = 360 + 700/720 = 1060/720 - 1060/720 simplified gives 53/36
- So, 40/80 + 70/72 = 53/36
In mixed form: 117/36
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