Add 84/56 and 54/90
1st number: 1 28/56, 2nd number: 54/90
84/56 + 54/90 is 21/10.
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,
84/56 = 84 × 45/56 × 45 = 3780/2520 - Likewise, for the 2nd fraction, since 90 × 28 = 2520,
54/90 = 54 × 28/90 × 28 = 1512/2520 - Add the two like fractions:
3780/2520 + 1512/2520 = 3780 + 1512/2520 = 5292/2520 - 5292/2520 simplified gives 21/10
- So, 84/56 + 54/90 = 21/10
In mixed form: 21/10
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