Add 81/56 and 6/90
1st number: 1 25/56, 2nd number: 6/90
81/56 + 6/90 is 1271/840.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 90 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 56 × 45 = 2520,
81/56 = 81 × 45/56 × 45 = 3645/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
6/90 = 6 × 28/90 × 28 = 168/2520 - Add the two like fractions:
3645/2520 + 168/2520 = 3645 + 168/2520 = 3813/2520 - 3813/2520 simplified gives 1271/840
- So, 81/56 + 6/90 = 1271/840
In mixed form: 1431/840
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