Add 21/15 and 18/48
1st number: 1 6/15, 2nd number: 18/48
21/15 + 18/48 is 71/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
21/15 = 21 × 16/15 × 16 = 336/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
18/48 = 18 × 5/48 × 5 = 90/240 - Add the two like fractions:
336/240 + 90/240 = 336 + 90/240 = 426/240 - 426/240 simplified gives 71/40
- So, 21/15 + 18/48 = 71/40
In mixed form: 131/40
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