Add 21/56 and 45/49
21/56 + 45/49 is 507/392.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 49 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 56 × 7 = 392,
21/56 = 21 × 7/56 × 7 = 147/392 - Likewise, for the 2nd fraction, since 49 × 8 = 392,
45/49 = 45 × 8/49 × 8 = 360/392 - Add the two like fractions:
147/392 + 360/392 = 147 + 360/392 = 507/392 - So, 21/56 + 45/49 = 507/392
In mixed form: 1115/392
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