Add 45/40 and 45/21
1st number: 1 5/40, 2nd number: 2 3/21
45/40 + 45/21 is 183/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 21 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
45/40 = 45 × 21/40 × 21 = 945/840 - Likewise, for the 2nd fraction, since 21 × 40 = 840,
45/21 = 45 × 40/21 × 40 = 1800/840 - Add the two like fractions:
945/840 + 1800/840 = 945 + 1800/840 = 2745/840 - 2745/840 simplified gives 183/56
- So, 45/40 + 45/21 = 183/56
In mixed form: 315/56
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