Add 70/56 and 81/45
1st number: 1 14/56, 2nd number: 1 36/45
70/56 + 81/45 is 61/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 45 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
70/56 = 70 × 45/56 × 45 = 3150/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
81/45 = 81 × 56/45 × 56 = 4536/2520 - Add the two like fractions:
3150/2520 + 4536/2520 = 3150 + 4536/2520 = 7686/2520 - 7686/2520 simplified gives 61/20
- So, 70/56 + 81/45 = 61/20
In mixed form: 31/20
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