Add 12/70 and 81/60
1st number: 12/70, 2nd number: 1 21/60
12/70 + 81/60 is 213/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
12/70 = 12 × 6/70 × 6 = 72/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
81/60 = 81 × 7/60 × 7 = 567/420 - Add the two like fractions:
72/420 + 567/420 = 72 + 567/420 = 639/420 - 639/420 simplified gives 213/140
- So, 12/70 + 81/60 = 213/140
In mixed form: 173/140
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