Add 81/8 and 12/30
1st number: 10 1/8, 2nd number: 12/30
81/8 + 12/30 is 421/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 30 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 8 × 15 = 120,
81/8 = 81 × 15/8 × 15 = 1215/120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,
12/30 = 12 × 4/30 × 4 = 48/120 - Add the two like fractions:
1215/120 + 48/120 = 1215 + 48/120 = 1263/120 - 1263/120 simplified gives 421/40
- So, 81/8 + 12/30 = 421/40
In mixed form: 1021/40
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