Add 20/18 and 90/16
1st number: 1 2/18, 2nd number: 5 10/16
20/18 + 90/16 is 485/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 16 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 18 × 8 = 144,
20/18 = 20 × 8/18 × 8 = 160/144 - Likewise, for the 2nd fraction, since 16 × 9 = 144,
90/16 = 90 × 9/16 × 9 = 810/144 - Add the two like fractions:
160/144 + 810/144 = 160 + 810/144 = 970/144 - 970/144 simplified gives 485/72
- So, 20/18 + 90/16 = 485/72
In mixed form: 653/72
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