Add 81/30 and 45/56
1st number: 2 21/30, 2nd number: 45/56
81/30 + 45/56 is 981/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 30 × 28 = 840,
81/30 = 81 × 28/30 × 28 = 2268/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
45/56 = 45 × 15/56 × 15 = 675/840 - Add the two like fractions:
2268/840 + 675/840 = 2268 + 675/840 = 2943/840 - 2943/840 simplified gives 981/280
- So, 81/30 + 45/56 = 981/280
In mixed form: 3141/280
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