Add 7/40 and 90/63
1st number: 7/40, 2nd number: 1 27/63
7/40 + 90/63 is 449/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 40 × 63 = 2520,
7/40 = 7 × 63/40 × 63 = 441/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
90/63 = 90 × 40/63 × 40 = 3600/2520 - Add the two like fractions:
441/2520 + 3600/2520 = 441 + 3600/2520 = 4041/2520 - 4041/2520 simplified gives 449/280
- So, 7/40 + 90/63 = 449/280
In mixed form: 1169/280
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