Add 21/60 and 48/42
1st number: 21/60, 2nd number: 1 6/42
21/60 + 48/42 is 209/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
21/60 = 21 × 7/60 × 7 = 147/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
48/42 = 48 × 10/42 × 10 = 480/420 - Add the two like fractions:
147/420 + 480/420 = 147 + 480/420 = 627/420 - 627/420 simplified gives 209/140
- So, 21/60 + 48/42 = 209/140
In mixed form: 169/140
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