Add 42/56 and 81/45
1st number: 42/56, 2nd number: 1 36/45
42/56 + 81/45 is 51/20.
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,
42/56 = 42 × 45/56 × 45 = 1890/2520 - Likewise, for the 2nd fraction, since 45 × 56 = 2520,
81/45 = 81 × 56/45 × 56 = 4536/2520 - Add the two like fractions:
1890/2520 + 4536/2520 = 1890 + 4536/2520 = 6426/2520 - 6426/2520 simplified gives 51/20
- So, 42/56 + 81/45 = 51/20
In mixed form: 211/20
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