Add 21/81 and 45/56
21/81 + 45/56 is 1607/1512.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 56 is 4536
Next, find the equivalent fraction of both fractional numbers with denominator 4536 - For the 1st fraction, since 81 × 56 = 4536,
21/81 = 21 × 56/81 × 56 = 1176/4536 - Likewise, for the 2nd fraction, since 56 × 81 = 4536,
45/56 = 45 × 81/56 × 81 = 3645/4536 - Add the two like fractions:
1176/4536 + 3645/4536 = 1176 + 3645/4536 = 4821/4536 - 4821/4536 simplified gives 1607/1512
- So, 21/81 + 45/56 = 1607/1512
In mixed form: 195/1512
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