Add 81/30 and 70/14
1st number: 2 21/30, 2nd number: 5 0/14
81/30 + 70/14 is 77/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 14 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
81/30 = 81 × 7/30 × 7 = 567/210 - Likewise, for the 2nd fraction, since 14 × 15 = 210,
70/14 = 70 × 15/14 × 15 = 1050/210 - Add the two like fractions:
567/210 + 1050/210 = 567 + 1050/210 = 1617/210 - 1617/210 simplified gives 77/10
- So, 81/30 + 70/14 = 77/10
In mixed form: 77/10
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