Add 48/21 and 90/12
1st number: 2 6/21, 2nd number: 7 6/12
48/21 + 90/12 is 137/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 21 × 4 = 84,
48/21 = 48 × 4/21 × 4 = 192/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
90/12 = 90 × 7/12 × 7 = 630/84 - Add the two like fractions:
192/84 + 630/84 = 192 + 630/84 = 822/84 - 822/84 simplified gives 137/14
- So, 48/21 + 90/12 = 137/14
In mixed form: 911/14
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