Add 49/56 and 21/81
49/56 + 21/81 is 245/216.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 81 is 4536
Next, find the equivalent fraction of both fractional numbers with denominator 4536 - For the 1st fraction, since 56 × 81 = 4536,
49/56 = 49 × 81/56 × 81 = 3969/4536 - Likewise, for the 2nd fraction, since 81 × 56 = 4536,
21/81 = 21 × 56/81 × 56 = 1176/4536 - Add the two like fractions:
3969/4536 + 1176/4536 = 3969 + 1176/4536 = 5145/4536 - 5145/4536 simplified gives 245/216
- So, 49/56 + 21/81 = 245/216
In mixed form: 129/216
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