Add 15/60 and 72/70
1st number: 15/60, 2nd number: 1 2/70
15/60 + 72/70 is 179/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
15/60 = 15 × 7/60 × 7 = 105/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
72/70 = 72 × 6/70 × 6 = 432/420 - Add the two like fractions:
105/420 + 432/420 = 105 + 432/420 = 537/420 - 537/420 simplified gives 179/140
- So, 15/60 + 72/70 = 179/140
In mixed form: 139/140
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