Add 81/8 and 42/27
1st number: 10 1/8, 2nd number: 1 15/27
81/8 + 42/27 is 841/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 27 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 8 × 27 = 216,
81/8 = 81 × 27/8 × 27 = 2187/216 - Likewise, for the 2nd fraction, since 27 × 8 = 216,
42/27 = 42 × 8/27 × 8 = 336/216 - Add the two like fractions:
2187/216 + 336/216 = 2187 + 336/216 = 2523/216 - 2523/216 simplified gives 841/72
- So, 81/8 + 42/27 = 841/72
In mixed form: 1149/72
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