Add 72/90 and 3/80
72/90 + 3/80 is 67/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 90 × 8 = 720,
72/90 = 72 × 8/90 × 8 = 576/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
3/80 = 3 × 9/80 × 9 = 27/720 - Add the two like fractions:
576/720 + 27/720 = 576 + 27/720 = 603/720 - 603/720 simplified gives 67/80
- So, 72/90 + 3/80 = 67/80
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