Add 84/90 and 40/56
84/90 + 40/56 is 173/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 90 × 28 = 2520,
84/90 = 84 × 28/90 × 28 = 2352/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
40/56 = 40 × 45/56 × 45 = 1800/2520 - Add the two like fractions:
2352/2520 + 1800/2520 = 2352 + 1800/2520 = 4152/2520 - 4152/2520 simplified gives 173/105
- So, 84/90 + 40/56 = 173/105
In mixed form: 168/105
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