Add 90/21 and 40/48
1st number: 4 6/21, 2nd number: 40/48
90/21 + 40/48 is 215/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
90/21 = 90 × 16/21 × 16 = 1440/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
40/48 = 40 × 7/48 × 7 = 280/336 - Add the two like fractions:
1440/336 + 280/336 = 1440 + 280/336 = 1720/336 - 1720/336 simplified gives 215/42
- So, 90/21 + 40/48 = 215/42
In mixed form: 55/42
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