Add 90/84 and 8/40
1st number: 1 6/84, 2nd number: 8/40
90/84 + 8/40 is 89/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 84 × 10 = 840,
90/84 = 90 × 10/84 × 10 = 900/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
8/40 = 8 × 21/40 × 21 = 168/840 - Add the two like fractions:
900/840 + 168/840 = 900 + 168/840 = 1068/840 - 1068/840 simplified gives 89/70
- So, 90/84 + 8/40 = 89/70
In mixed form: 119/70
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