Add 49/90 and 72/80
49/90 + 72/80 is 13/9.
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,
49/90 = 49 × 8/90 × 8 = 392/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
72/80 = 72 × 9/80 × 9 = 648/720 - Add the two like fractions:
392/720 + 648/720 = 392 + 648/720 = 1040/720 - 1040/720 simplified gives 13/9
- So, 49/90 + 72/80 = 13/9
In mixed form: 14/9
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