Add 30/81 and 90/80
1st number: 30/81, 2nd number: 1 10/80
30/81 + 90/80 is 323/216.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 80 is 6480
Next, find the equivalent fraction of both fractional numbers with denominator 6480 - For the 1st fraction, since 81 × 80 = 6480,
30/81 = 30 × 80/81 × 80 = 2400/6480 - Likewise, for the 2nd fraction, since 80 × 81 = 6480,
90/80 = 90 × 81/80 × 81 = 7290/6480 - Add the two like fractions:
2400/6480 + 7290/6480 = 2400 + 7290/6480 = 9690/6480 - 9690/6480 simplified gives 323/216
- So, 30/81 + 90/80 = 323/216
In mixed form: 1107/216
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