Add 63/70 and 9/60
63/70 + 9/60 is 21/20.
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,
63/70 = 63 × 6/70 × 6 = 378/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
9/60 = 9 × 7/60 × 7 = 63/420 - Add the two like fractions:
378/420 + 63/420 = 378 + 63/420 = 441/420 - 441/420 simplified gives 21/20
- So, 63/70 + 9/60 = 21/20
In mixed form: 11/20
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