Add 21/7 and 42/48
1st number: 3 0/7, 2nd number: 42/48
21/7 + 42/48 is 31/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 48 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 7 × 48 = 336,
21/7 = 21 × 48/7 × 48 = 1008/336 - Likewise, for the 2nd fraction, since 48 × 7 = 336,
42/48 = 42 × 7/48 × 7 = 294/336 - Add the two like fractions:
1008/336 + 294/336 = 1008 + 294/336 = 1302/336 - 1302/336 simplified gives 31/8
- So, 21/7 + 42/48 = 31/8
In mixed form: 37/8
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