Add 90/63 and 12/40
1st number: 1 27/63, 2nd number: 12/40
90/63 + 12/40 is 121/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 40 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 63 × 40 = 2520,
90/63 = 90 × 40/63 × 40 = 3600/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
12/40 = 12 × 63/40 × 63 = 756/2520 - Add the two like fractions:
3600/2520 + 756/2520 = 3600 + 756/2520 = 4356/2520 - 4356/2520 simplified gives 121/70
- So, 90/63 + 12/40 = 121/70
In mixed form: 151/70
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