Add 98/80 and 18/90
1st number: 1 18/80, 2nd number: 18/90
98/80 + 18/90 is 57/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 90 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
98/80 = 98 × 9/80 × 9 = 882/720 - Likewise, for the 2nd fraction, since 90 × 8 = 720,
18/90 = 18 × 8/90 × 8 = 144/720 - Add the two like fractions:
882/720 + 144/720 = 882 + 144/720 = 1026/720 - 1026/720 simplified gives 57/40
- So, 98/80 + 18/90 = 57/40
In mixed form: 117/40
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