Add 42/48 and 21/60
42/48 + 21/60 is 49/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 60 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
42/48 = 42 × 5/48 × 5 = 210/240 - Likewise, for the 2nd fraction, since 60 × 4 = 240,
21/60 = 21 × 4/60 × 4 = 84/240 - Add the two like fractions:
210/240 + 84/240 = 210 + 84/240 = 294/240 - 294/240 simplified gives 49/40
- So, 42/48 + 21/60 = 49/40
In mixed form: 19/40
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