Add 90/40 and 30/84
1st number: 2 10/40, 2nd number: 30/84
90/40 + 30/84 is 73/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 84 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
90/40 = 90 × 21/40 × 21 = 1890/840 - Likewise, for the 2nd fraction, since 84 × 10 = 840,
30/84 = 30 × 10/84 × 10 = 300/840 - Add the two like fractions:
1890/840 + 300/840 = 1890 + 300/840 = 2190/840 - 2190/840 simplified gives 73/28
- So, 90/40 + 30/84 = 73/28
In mixed form: 217/28
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