Add 15/60 and 21/14
1st number: 15/60, 2nd number: 1 7/14
15/60 + 21/14 is 7/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 14 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 14 × 30 = 420,
21/14 = 21 × 30/14 × 30 = 630/420 - Add the two like fractions:
105/420 + 630/420 = 105 + 630/420 = 735/420 - 735/420 simplified gives 7/4
- So, 15/60 + 21/14 = 7/4
In mixed form: 13/4
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