Add 1/90 and 63/80
1/90 + 63/80 is 115/144.
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,
1/90 = 1 × 8/90 × 8 = 8/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
63/80 = 63 × 9/80 × 9 = 567/720 - Add the two like fractions:
8/720 + 567/720 = 8 + 567/720 = 575/720 - 575/720 simplified gives 115/144
- So, 1/90 + 63/80 = 115/144
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